1.
1.
Розділ
натуральне число
Натуральними називають числа, якими
Найбільшого натурального числа не існує
2. Назви розрядні
3. Як класифікують числа за кількістю цифр,
1 цифра
2 цифри — десятки 3
567 = 500 + 60 + 7
= 5 ∙ 100 + 6 ∙ 10 + 7
809 = 800 + 9 809 = 8 ∙ 100 + 9
340 = 300 + 40 340 = 3 ∙ 100 + 4 ∙ 10
Сторінка №3
4.
суму.
400 + 30 + 8 = 438
800 + 20 + 3 = 823
+ 40 = 540
+ 70 = 670
+ 7 = 907
+ 1 = 301 300 + 50 + 9 = 359
569 + 1 = 570
– 1 = 899
+ 1 = 771 700 – 1 = 699
числа не повторювалися. 274, 247, 472, 427, 724, 742
8. Запишіть можливі
записі числа не повторювалися. 13, 31, 39, 91, 93, 19, 91
Сторінка №4
1. Користуючись
50 ∙ 8 ∙ 2 = 100 ∙ 8 = 800
456 - (256 + 38) = 456 – 256 – 38 = 200 – 38 = 162
115 + (27 + 285) = 115 + 27 + 285 = 400 + 27 = 427
5 ∙ (18 ∙ 6) = 5 ∙ (10 ∙ 6 + 8 ∙ 6) = 5 ∙ ( 60 + 48) = 5 ∙ 108 = 5 ∙ 100 + 5 ∙ 8 = 540
3.
суми на число.
43 ∙ 7 = 43 + 43 + 43 + 43 + 43 + 43 + 43 = 301
60 : 5 = (50 + 10) : 5 = 50 : 5 + 10 : 5 = 10 + 2 = 12
4. Знайди значення виразів, застосовуючи
числа на добуток.
8 ∙ 35 = 8 ∙ 30 + 8 ∙ 5 = 240 + 40 = 280
64 : 16 = 64 : 8 : 2 = 8 : 2 = 4
5. Згадай, що означає “число
способом добору за схемою.
51 : 17 = 3, тому що 17 ∙ 3 = 51
78 : 39 = 2, тому що 39 ∙ 2 =78
Сторінка №5
6. Згадай, як перевірити правильність
множення; ділення. З’ясуй, істині
виправ їх.
470 + 240 = 610; 610 - 240 = 370 (неправильно)
620 – 260 = 360; 620 – 360 = 260 (правильно)
320 ∙ 3 = 960; 960 : 3 = 900 : 3 + 60 : 3 = 300 + 20 = 320 (правильно)
720 : 30 = 240; 240 ∙ 30 =
(неправильно)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/32804cf65ec76eceeecee05dae920e26.jpeg)
200
3)
1) 3 ∙ 250 – 120 = 750 – 120 = 630 г Відповідь: залишилось
2) 250 – 120 + 250 + 250 = 630
1. Згадай, як залежить значення
підказками.
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/42588ef119249a1692d9cfc3d836a75b.jpeg)
38 + 44 = 40 + 44 – 2 = 84 – 2 = 82 67 – 29 = 67 – 30 + 1 = 37 + 1 = 38 6 ∙ 50 = 6 ∙ 100 : 2 = 900 : 3 = 300 900 : 50 = 900 :
2. Обчислити
71 – 36 = 70 + 1 – (35 + 1) = 35
900 : 50 = 500 : 50 + 400 : 50 = 10 + 8 = 18
1000 : 50 = 100 : 5 = 20
430 : 5 = 400 : 5 + 30 : 5 = 80 + 6 = 86
24 ∙ 5 = 20 ∙ 5 + 4 ∙ 5 = 100 + 20 = 120
1000 : 25 = 500 : 25 + 500 : 25 = 20 + 20 = 40
4 ∙ 25 = 4 ∙ 20 + 4 ∙ 5 = 80 + 20 =100
900 : 25 = 500 : 25 + 400 : 25 = 20 + 16 = 36
36 ∙ 5 = 30 ∙ 5 + 6 ∙ 5 = 150 + 30 = 180
Сторінка №7
3. Назви групи взаємопов’язаних величин. Яким компонентом є загальна
величина? Величина одиниці виміру? Кількість або час? Усно склади
з кожною групою взаємопов’язаних величин.
Групи взаємопов'язаних величин включають:
1. Швидкість, час і відстань.
Загальна величина: відстань.
Одиниця виміру: метри (км).
Кількість або час: час.
Задача: Автомобіль рухається
проїде за 2 години?
2. Ціна, кількість товару і вартість.
Загальна величина: вартість.
Одиниця виміру: гривні (грн).
Кількість
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/82614fac7667dc94e6f63bb131af9fc3.jpeg)
36 : 3 = 12 кг
Сторінка №8
1.
280 + 350 = 280 + 300 + 50 = 630
280 + 350 = 300 + 330 = 630
280 + 350 = 200 + 80 + 350 = 550 + 80 = 630
280 + 350 = 230 + 50 + 350 = 230 + 400 = 630
280 + 350 = 200 + 80 + 300 + 50 = 500 + 130 = 630
280 + 350 = 580 + 50 = 630
280 + 350 = 28 д. + 35 д. = 630
310 – 150 = 310 – 100 – 50 = 160
310 – 150 = 200 – 40 = 160
310 – 150 = 150 + 10 = 160
310 – 150 = 160
310 – 150 = 300 – 140 = 160
310 – 150 = 110 + 50 = 160
310 – 150 = 31 д. - 15 д. = 160
340 + 250 = (300 + 200) + (40 + 50) = 500 + 90 = 590
345 + 253 = (300 + 200) + (40 + 50) + (5 + 3) = 500 + 90 + 8 = 590 + 8 = 598
580 – 370 = (500 – 300) + (80 – 70) = 200 + 10 = 210
583 – 371 = (500 – 300) + (80 – 70) + (3 – 1) = 200 + 10 + 2 = 210 + 2 = 212
650 + 360 = (600 + 300) + (50 + 60) = 900 + 110 = 1010
654 + 363 = (600 + 300) + (50 + 60) + (4 + 3) = 900 + 110 + 7 = 1010 + 7 + 1017
840 – 580 = (700 – 500) + (100 – 80 + 40) = 200 + 20 + 40 = 220 + 40 = 260
847 – 585 = (700 – 500) + (100 – 80 + 40) + (7 - 5) = 200 + 20 + 40 + 2 = 220 + 42 = 262
№9
час
+ 423 = 3
десятків 8 одиниць
4
770 – 530 = 7 сотень 7 десятків – 5 сотні 3
776 – 534 = 7 сотень 7
десятки 2 одиниці
6
580 + 240 = 5 сотень 8 десятків + 2 сотні 4
= 8 сотень 2 десятки 583 + 246 = 5 сотень 8 десятків 3
6
= 8 сотень 2
десятки 9 одиниць
810 – 530 = 8 сотень 1 десяток + 5 сотень 3 десятки = 2
815 – 532 = 8 сотень 1 десяток 5
3 одиниці
5. Зістав вирази
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/833b9a9ca42863b49eba6a94e48e1965.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/b02f0f5b02226c4513e0f79dd185591d.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/1150ef7d3839e03ac3ce2c1f5f70665a.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/27d711ac09a501ac4918832ecb6211e3.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/0e6b973dcd1f62b1c7bb46d1edd9e6db.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/1d3bdcba07db3ea1849686654709c8f1.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/b1f60257481582c1e57057cdca0b6ee9.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/bc886678b0fe1c02c5fc8d8ba6699464.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/605a0b23caeea4e36fc8d05263b81388.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/454d22f0a4154b72ccd6170ae14a35cc.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/c2f6a1e55b47f28811f540c8885c62c6.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/1e4d802da89ed4610bc5d848fc5fefb7.jpeg)
5
1,5
150
751 – 25 = 740 – 20 + 11 – 5 = 720 + 6 = 726
751 – 225 = 700 – 200 + 40 – 20 + 11 – 5 = 500 + 20 + 6 = 526
36 + 48 = 30 + 40 + 6 + 8 = 70 + 12 = 84
336 + 48 = 330 + 40 + 6 + 8 = 370 + 14 = 384
336 + 248 = 330 + 240 + 6 + 8 = 570 + 14 = 584
Розв’язання
340 + 270 = 340 + 200 + 70 = 540 + 70 = 610
340 + 270 = 340 + 60 + 210 = 400 + 210 = 610
340 + 270 = 300 + 40 + 270 = 40 + 570 = 610
340 + 270 = 310 + 30 + 270 = 310 + 300 = 610
340 + 270 = 300 + 40 + 200 + 70 = 500 + 110 = 610
340 + 270 = 34 д. + 27 д. = 610
340 – 270 = 340 – 200 – 70 = 140 – 70 = 70
340 – 270 = 340 – 240 – 30 = 100 – 30 = 70
340 – 270 = 300 + 40 – 270 = 40 + 30 = 70 340 – 270 = 70 + 270 – 270 = 70 + 0 = 70 340 – 270 = 200 + 140 – 200 – 70 = 140 - 70 = 70 340 – 270 = 34 д. - 27 д. = 70 3.
250 + 20 + 250 + 20 = 500 + 40 = 540
270 +
– 160 = 56 д. – 16 д. = 38 д. = 380
+ 530 = 300 + 500 + 50 +
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/c344c446ae8239befad87bcc8ea3e98e.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/beb2e7c155eca10755e2fc16ac0da255.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/f5874f023d8bfad07bd32f1878702010.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/1f948808ffadee8d90f717b1637963ac.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/732d3e9b102ee97cf5d46991a4e79471.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/594d0cdc4417a9a795d8fd9849be4061.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/35a7f71205e9c4aa06e69b6134564029.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/d452479f49fafd0c23b525f91aaf850c.jpeg)
12 + 24 + 8 = 20 + 24 = 44
50 ∙ 9 ∙ 2 = 100 ∙ 9 = 900
4 ∙ 9 ∙ 5 = 20 ∙ 9 = 180
2 ∙ 7 ∙ 5 = 10 ∙ 7 = 70
25 ∙ 7 ∙ 4 = 100 ∙ 7 = 700
420 + 275 + 80 = 500 + 275 = 775
160 + 70 + 140 = 300 + 70 = 370
17 + 56 + 23 = 40 + 56 = 96
458 + 253 + 42 = 500 + 253 = 753
23 ∙ 4 = 20 ∙ 4 + 3 ∙ 4 = 80 + 12 = 92
42 : 3 = 30 : 3 + 12 : 3 = 10 + 4 = 14
16 ∙ 7 = 10 ∙ 7 + 6 ∙ 7 = 70 + 42 = 112
64 : 16 = 32 : 16 + 32 : 16 = 2 + 2 = 4
72 : 18 = 72 : 9 : 2 = 8 : 2 = 4
78 : 13 = 39 : 13 + 39 : 13 = 3 + 3 = 6
84 : 7 = 70 : 7 + 14 : 7 = 10 + 2 = 12
69 : 3 = 30 : 3 + 30 : 3 + 9 : 3 = 10 + 10 + 3 = 23
72 ∙ 2 = 70 ∙ 2 + 2 ∙ 2 = 140 ∙ 4 = 144
76 : 19 = 38 : 19 + 38 : 19 = 2 + 2 = 4
112 : 16 = 112 : 2 : 8 = 56 : 8 = 7
56 : 14 = 56 : 7 : 2 = 8 : 2 = 4
(8 + 12 + 15) : 7 = (20 + 15) : 7 =
145, 154, 415, 451, 514, 541
6
154, 514 Непарні: 145, 415, 451, 541
на 5: 145, 415
32 = 672
68 : 4 = (40 + 28) : 4 = 40 : 4 + 28 : 4 = 10 + 7 = 17
168 : 4 = (100 + 40 + 28) : 4 = 100 : 4 + 40 : 4 +
40 ∙ 6 = 4 д. ∙ 6 = 24 д. = 240
140 ∙ 6 = 14 д. ∙ 6 = 84 д. = 840
80 : 4 = 8 д. : 4 = 2 д. = 20
680 : 4 = 68 д. : 4 = 17 д. = 170
40 ∙ 6 = (4 ∙ 6) ∙ 10 = 24 ∙ 10 = 240
140 ∙ 6 = (14 ∙ 6) ∙ 10 = 84 ∙ 10 = 840
80 : 4 = (8 : 4) ∙ 10 = 2 ∙ 10 = 20
680 : 4 = (68 : 4) ∙ 10 = 17 ∙ 10 = 170
Сторінка №13 3. Обчисли за схемами.
відмінність впливає на розв’язування?
90 : 3 = 9 д. : 3 = 3 д. = 30
90 : 30 = 9 д. : 3 д. = 3
90 : 3 = (9 : 3) ∙ 10 = 3 ∙ 10
90 : 30 = (90 : 10) : 3 = 9 : 3 = 3
720 : 18 = 72 д. : 18 = 4 д. = 40
720 : 18 = (72 : 18) ∙ 10 = 4 ∙ 10 = 40
600 : 2 = 6 с. : 2 = 3 с. = 300
600 : 200 = 6 с. : 2 с. = 3
600 : 2 = (6 : 2) ∙ 100 = 3 ∙ 100 = 300
600 : 200 = (600 : 100) : 2 = 3
720 : 180 = 72 д. : 18 д. = 4
720 : 180 = (720 : 10) : 18 = 72 : 18 = 4
4.
72 : 4 = 40 : 4 + 32 : 4 = 10 + 8 =18
50 ∙ 7 = 5 ∙ 7 ∙ 10 = 35 ∙ 10 = 350
112 : 16 = 112 : 2 : 8 = 56 : 8 = 7
80 : 20 = 8 д. : 2 д. = 4
72 : 18 = 72 : 9 : 2 = 8 : 2 = 4
120 : 6 = (12 : 6) ∙ 10 = 2 ∙ 10 = 20
81 : 3 = 60 : 3 + 21 : 3 = 20 + 7 = 27
36 ∙ 6 = 30 ∙ 6 + 6 ∙ 6 = 180 + 36 = 216
16 ∙ 5 = 10 ∙ 5 + 6 ∙ 5 = 50 + 30 = 80
153 : 17 = (170 – 17) : 17 = 170 : 17 + 17 : 17 = 10 – 1 = 9
80 ∙ 5 = 8 ∙ 5 ∙ 10 = 40 ∙ 10 = 400
76 : 4 = (80 – 4) : 4 = 80 : 4 – 4 : 4 = 20 – 1 = 19
5. Розв’яжи задачу.
коробок?
1) 60 : 15 = 4 коробки
2) 60 : 12 = 5 кошиків
3) 5 – 4 = 1
1)
2) 60 : 15 = 4
16 ∙ 9 = 16 ∙ 10 – 16 =160 – 16 = 144
6 ∙ 99 = 6 ∙ 100 – 6 = 600 – 6 = 594
= 8 ∙ 10 + 8 ∙ 1 = 80 + 8 = 88
7 ∙ 99 = 7 ∙ 100 – 7 = 700 – 7 = 693
8 ∙ 99 = 8 ∙ 100 – 8 = 800 – 8 = 792
5 ∙ 11 = 5 ∙ 10 + 5 ∙ 1 = 50 + 5 = 55
7 ∙ 11 = 7 ∙ 10 + 7 ∙ 1 = 70 + 7 = 77
23 ∙ 9 = 23 ∙ 10 – 23 = 230 – 23 = 207
42 ∙ 9 = 42 ∙ 10 – 42 = 420 – 42 = 378
пташиному
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/8bf356a23cde63835790bd346a7fcb5e.jpeg)
72 : 9 = 8 грн — ціна
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/37e314cd3a35c7f9426bebd9e268987f.jpeg)
72 : 9 = 8
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/8a60b60d164787fda66bc46775dd204a.jpeg)
72
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/0c120f07a3f7ed6a5ff008445408b206.jpeg)
4
2)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/f741d5582a747245c43ba8a34070c2b6.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/112e8cc18afe7c98e04ae6878644021f.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/717fe8428033f857e36abe7ccacec0da.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/d1431b1ead80cb2cb5a9e12116594f57.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/3aa5c9183b19dc6fc23a9eb0e6f51ef9.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/a42899be83de902f6685a3175e9023e5.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/ebddc9fcc6d503ce6e351f6673cb6179.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/b5bb901632c5dd4ee9482e9197f5ea6f.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/d3a63d40682c95a42155196b17f14814.jpeg)
96 : 8 = 12 60 : 7 = 8(4) 49 : 12 = 4(1) 50 : 6 = 8(2)
108 : 9 = 12 40 : 9 = 4(4) 56 : 5 = 11(1)
2 64 : 16 = 4
4
30 : 4 59 : 17
1) 4, 8, 12, 16, 20, 24, 28 1) 17, 34, 51
2) 28 : 4 = 7 2) 51 : 17 = 3
3) 30 – 28 = 2 3) 59 – 51 = 8
30 : 4 = 7(2)
49 : 6
59 : 17 = 3(9)
41 : 16
1) 6, 12, 18, 24, 30, 36, 42, 48 1) 16, 32
2) 48 : 6 = 8
2) 32 : 16 = 2
3) 49 – 48 = 1 3) 41 – 32 = 9
49 : 6 = 8(1) 41 : 16 = 2(9)
67 : 18 25 : 11
1) 18, 36, 54 1) 11, 22
2) 54 : 18 = 3 2) 22 : 11 = 2
3) 67 – 54 = 13 3) 25 – 22 = 3
67 : 18 = 3(13) 25 : 11 = 2(3)
48 : 14 75 : 12
1) 14, 28, 42 1) 12, 24, 36, 48, 60, 72
2) 42 : 14 = 3 2) 72 : 12 = 6
3) 48 – 42 = 6 3) 75 – 72 = 3
48 : 14 = 3(6) 75 : 12 = 6(3)
68 : 16 40 : 13
1) 16, 32, 48, 64 1) 13, 26, 39
2) 64 : 16 = 4 2) 39 : 13 = 3
3) 68 – 64 = 4
3) 40 – 39 = 1
68 : 16 = 4(4) 40 : 13 = 3(1)
60 : 25
38 : 24
1) 25, 50 1) 24
2) 50 : 25 = 2
3) 60 – 50 = 10
2) 24 : 24 = 1
3) 38 – 24 = 14
60 : 25 = 2(10) 38 : 24 = 1(14) 3.
30 : 7 = 4(2)
: 20 = 9(10)
: 60 = 9(20)
: 80 = 4(20)
: 5 = 12(3)
: 3 = 12(2)
1) 1, 6, 11, 16, 21, 26, 31. -
2) 3, 7, 11, 15, 19,
2, 3, 4, 5, 6, 7, 8)
2) 1
(1)
(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
(4x + 8 ∙ 4) : 6 = 6(4)
(4x + 32) : 6 = 6(4)
4x + 32 = 6 ∙ 6 + 4
4x = 36 + 4 – 32
4x = 8
4x : 4 = 8 : 4
x = 2
Денис
Сторінка №20
1.
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/c43845806cd24dfb2f4dfdba367a3125.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/31a24e8ee9d8a89e9a7835bc926fc3db.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/f5ccf214ac6bfe1d761e9f4877c8cb00.jpeg)
24 : 3 = 8 24 : 8 = 3
Сторінка №21
72 : 18 + 80 : 16 = 4 + 5 = 9; 100 – 108 : 18 ∙ 15 = 100 – 6 ∙ 15 = 100 – 90 = 10;
76 : 19 ∙ 34 – 48 = 4 ∙ 34 – 48 = 136 – 48 = 88; 6 ∙ 27 : 18 ∙ 26 = 162 : 18 ∙ 26 = 9 ∙ 26 = 234; 135 : 15 ∙ (80 : 16) = 135 : 15 ∙ 5 = 9 ∙ 5 = 45; 65 :
32 : 10 = 160 : 10 = 16;
5 ∙ 34 : 17 ∙ (26 + 47) = 5 ∙ 2 ∙ 73 = 10 ∙ 73 = 730 — правильно 102 : (85 : 5) ∙ 8 = 102 : 7
102 : (85 : 5) ∙ 8 = 102 : 17 ∙ 8 = 48 68 + 16 : 2
370 + 260 = 370 + (30 + 230) = (370 + 30) + 230 = 400 + 230 = 630
: 8 = (10 ∙ 96) : 8 = 10 ∙ (96 : 8) =
числові вирази. (111 ∙ 9 – 299) : 7 < (25 ∙ 4 – 18) ∙ 5 (30 ∙ 2 – 2) ∙
5
: 80 = 5(20) 280 : 50 = 5(3) 650 : 70 = 9(20) 220 :
Перевірка:
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/da05a175dd8c3c69a9c3eda501efc9f9.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/7705b212320128fe22c19441f121b368.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/7ab6659bebc3347c45457c24ec0491c3.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/7a8dbc125bcb439782a4349b843c8952.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/c68be62e2a096e0e21b4230592a7c032.jpeg)
(4x + 12) : 5 = 6(2)
4x + 12 = 5 ∙ 6 + 2
4x = 30 + 2 – 12
4x = 20
4x : 4 = 20 : 4
x = 5
Число яке задумав Микита 53.
Сторінка №24
1.
3 ∙ x = 9 — 3
: b = 5 — 2
9 : 3 = 3 10 : 5 = 2
3 ∙ k < 15 — 2
: 6 = 3 — 18
∙ 6 = 18
– d < 8 — 27
+ p > 13 — 15 15 : 3 = 5
<
+
= 5
..., 4, 5<, 6, ...
4,
= 71 – 44
= 27
98 – 45 = 53
– 45 = 56
= 56 + 45
= 101
28 + c = 62
+ c
1) 18 – x = 9
– x > 9
– x < 9 x = 18 – 9 2) x < 9 2) x > 9 x = 9
8, 7, 6, 5, ...
4. Порівняй вирази. 96 : 12 – 48 : 8
8 – 6 5 - 2
106 > 44
5.
x ∙ 12 = 60
x = 60 : 12
x = 5
2)
x : 17 = 3
x = 17 ∙ 3
x = 51
1.
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/f36d3885bf1729cceb45809855d99632.jpeg)
960 грн : 3 = 320 грн
третину. Якою стала ціна телефону?
960 грн : 3 = 320 грн
960 – 320 = 960 – 300 – 20 = 660 – 20 = 640
3) Ціна мобільного телефону
48 : 2 = 24
24 : 3 = 8 3)
24 : 3 = 8 24 : 4 = 6 8 + 6 = 14
: 9 = 9(2)
36 : 11 = 3(3)
714 < 814 9
839 > 8 2 9 1,
568 < 569
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/6df6215092ffcdb98207ce150abafdfb.jpeg)
Сторінка №32
1.
36 ∙ 4 = 144 96 : 48 = 2
=
=
43 + 29 = 43 + (7 + 22) = (43 + 7) + 22 = 50 + 22 = 72 —
5 ∙ 14 = 5 ∙ (2 ∙ 7) = (5 ∙ 2) ∙ 7 =
72 : 18 = 72 : 9 : 2 = 8 : 2 = 4
∙ 2 = 30 ∙ 2 + 4 ∙ 2 = 60 + 8 = 68
: 16 = (160 – 32) : 16 = 160 : 16 – 32 : 16 = 10 – 2 = 8
:
=
:
:
x + 8 + x + 7 + x + 9 = 150
3x + 24 = 150
3x = 150 – 24
3x = 126
x = 126 : 3 x = 42
42 + 8 = 50
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/561df11088ff1c9a04d3c9b43853626e.jpeg)
Зала: Велика Ряд: 12
Квиток: Дитячий
Місце: 10
Початок: 18 год 35 хв Ціна: 80 грн
Сторінка №34
1. Знайди значення виразів
340 + 480 = 300 + 40 + 480 = 780 + 40 = 820
117 : 13 = (130 – 13) : 13 = 130 : 13 – 13 : 13 = 10 – 1 = 9
630 – 560 = 600 + 30 – 560 = 40 + 30 = 70
265 ∙ 3 = 200 ∙ 3 + 60 ∙ 3 + 5 ∙ 3 = 600 + 180 + 15 = 795
45 ∙ 8 = 40 ∙ 8 + 5 ∙ 8 = 320 + 40 = 360
84 : 7 = 70 : 7 + 14 : 7 = 10 + 2 = 12
108 : 18 = 108 : 2 : 9 = 54 : 9 = 6
123 + 346 = 100 + 23 + 346 = 446 + 23 = 469
2. Згадай,
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/bcc2b1ef2010a960f559741c538329dc.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/2b9071aaed7839294d7f59348df567d2.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/4efbc36e7e93ebe008f5de661634f2cd.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/5e55f7d2f87da0e4bca275f429831029.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/6b1b080edb2577dea59918e51bf35c21.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/f6f4e906580b4727b7c4a1e7d7ac93b6.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/d7d30543c80510ca6916969aea85eb08.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/337d27a0ff2dae9d605dd538b62c6140.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/ee9b7d5c4ac42cde0adad3a0a2e81e27.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/98ccc57a74e4fe48d7046858cc90bbd8.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/876cf1ee95913acfea27d6022071f1f0.jpeg)
300 : 5 = 60
60 – 12 = 48
48 ∙ 7 = 336 Відповідь:
300 : 5 = 60
60 –
2.
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/a0168a9752ed8a15cda03cde75ec0356.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/2962b3890ebdfb38d677aece956f82bc.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/26a2c1bb5ecab3bd13ada3b319f219cb.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/39a64dfa661b2fd91e3f6271b3c48d2a.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/9b2bfddcad60946e3f5f08deec2cbf53.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/50194a7743cf776f63d3e05baf012e13.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/21ace46d260389de18e818ecb1fe6362.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/601e51a3f7aa83596e5f73a7254125dc.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/49324baa7b95dd0fe0efc6118f8a7d46.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/ea8b5d7ba3d168176ffd9cbb377eefc7.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/5eecce2abc5aae3538d5c5102ed4ffef.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/0c5b96e8c65e2c95898414a81701c2f6.jpeg)
63 : 7 = 9
1) 147 : 7 + 99 = 21 + 99 = 120
2) 147 : 21 + 99 = 7 + 99 = 106
3) 147 : 3 + 99 = 49 + 99 = 148
8. Знайди:
1) 1 3 від 48 48 : 3 = 16 1 5
135 135 : 5 = 27
80 80 : 5 = 16 1 9
153 153 : 9 = 17
2) ціле, якщо його 1 16 дорівнює 9
9 · 16 = 144 Ціле, якщо його 1 7 дорівнює
1)
10 : 5 = 2
6 · 2 = 12
Відповідь:
2)
6 : 3 = 2
10 · 2 = 20
Відповідь:
Сторінка №39
3.
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/980bb336e09d90212ad1beb5eb50ee44.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/388137c7c0a51502eccc7a98a203c2ef.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/3800c0a671ff6b23c1090d7a8160ecab.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/3c30941551b283e60e59c9271e590d97.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/42ed62962bf19468679eb3220b5948cb.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/b7230588bedad5795d64614ad56e7400.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/80e7f18c113349fa396e7900a16552d4.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/d7937ca57c54e4f6cd2bc084e45e48e1.jpeg)
3.
240 : x = 91 – 88 4 · b = 37 + 47
240 : x = 3 4 · b =
x = 80 b = 21
c : (17 – 8) = 72 (76 - 38) + k = 42
c : 9 = 72 38 + k = 42
c = 72 · 9 = 72 · 10 – 72 k = 42 – 38 = 30 – 30 + 12 – 8
c = 720 - 72 k = 4
c = 648
80 + 648 + 21 + 4 = 728 + 21 + 4 = 749 + 4 = 753 4.
58 : 7 = 8(2) → 8 · 7 + 2 = 58
30 : 4 = 7(2) → 4 · 7 + 2 = 30
5 : 9 = 0(5) → 0 · 9 + 5 = 5
50 : 6 = 8(2) → 8 · 6 + 2 = 50
a : 8 = 6(7) x : 6 = 9(4)
a = 6 · 8 + 7 x = 6 · 9 + 4
a = 55 x = 58
y : 7 = 14(4)
y = 14 · 7 + 4
y = 102
c : 16 = 6(11)
c = 16 · 6 + 11
c = 107
200 : 4 = 50
50 · 2 = 100
ІІ способів
4 : 2 = 2
200 : 2 = 100
Відповідь: потрібно 100 грамів морозива.
Сторінка №42
1. Розв’язати задачу 1 двома способами.
1) З 800 г абрикосів одержали 400 г кураги. Скільки
одержати 200 г кураги?
І спосіб
400 : 200 = 2
800 : 2 = 400 ІІ спосіб
800 : 400 = 2
200 · 2 = 400
Відповідь: потрібно
2) Із 790 г абрикосів
400 : 200 = 2
790 · 2 = 1580
156 : 4 = (160 – 4) : 4 = 160 : 4 – 4 : 4 = 40 – 1 = 39
672 : 6 — 3 90 : 5 — 2
6.
15 : 6 = 2(3)
7. Доведи істинність рівностей.
867 : 4 = 216(3)
: 7 = 13(4) 216 · 4 + 3 = 864 + 3 = 867
· 13 + 4 = 91 + 4 = 95 Сторінка №44 1. Виконай
642 : 3 = 600 : 3 + 30 : 3 + 12 : 3 = 200 + 10 + 4 = 214
72 : 6 = 60 : 6 + 12 : 6 = 10 + 2 = 12
575 : 5 = 500 : 5 + 50 : 5 + 25 : 5 = 100 + 10 + 5 = 115 36 : 9 = 4
148 : 4 = (160 – 12) : 4 = 160 : 4 – 12 : 4 = 40 – 3 =
:
:
№45
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/54542eebc038d9acef2a292926327c44.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/e5b723899780a0e358375f3896d5c906.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/5e1cb2e6afc6e02f84ace242b99a6a3b.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/17d05daf102f030e1190a89e1a7aa15d.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/02c54ba5f049c2074e19e272623c5504.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/ae22931ada3d842b3305916d722d3323.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/b5981a606703d1168ed6fb2fc451c7db.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/edbf1d2b4a0c97c0135ba8d5c12e4db9.jpeg)
1)
8 : 4 = 2
62 · 2 =
64 : 4 = 16
16 · 8 = 128
8 : 4 = 2
64 · 2 = 128
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/f19d2a67c9a50c8897df47a4ff3e312b.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/113f62707d297ccc365e65a55a182b21.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/5193be590212792e5725d6d2080ca45c.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/e0ac67db7c4f47ead56f489add6681fb.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/801ea0fe50405cb8df43c21c391cc324.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/ee355b7708e2b6132998e0e150afe08a.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/0023002ac6c93255e0d0eb740c19f2dd.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/0ccf7bad6f5b9af245c8e3ee74f85e89.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/206316c1dd1da1e803d3c4543b7d1503.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/a176dffbd3c2245087be1b8ff8695c29.jpeg)
90 :
75 : 3 = 25
Відповідь:
Скільки заплатили
75 : 5 = 15
6 · 15 = 90
Відповідь: заплатили 90 грн.
Сторінка №48
1.
: 9 = 4(2)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/1158d77709f0673a481a1fc7e3ba9902.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/ba1d894c6ac1e20fc55cebc8cdaca51a.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/389aa12181a9eb992631bd7107af867d.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/8969558df553a5918d6e01f93a8d9c6a.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/74892615122ec142f03bfc5f61f0fb22.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/6c95dce37590145922560f30d953a5f6.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/3af31dc437c692d9c255cedb3ac5a115.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/0a9b88789ce794c42979d89897515884.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/84b4890ed7c5c9037555dbbdd31ddf95.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/389f342acab45a8ae7558464da7eb4a5.jpeg)
: 4 = 30
240 : 30 = 8
240 : 120 = 2
4 · 2 = 8
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/370c02851f6f2bc1fbb5423fa9b0ed5d.jpeg)
120 : 4 = 240 : x
30 = 240 : x
x = 240 : 30
x = 8
· 2 + 195 = 813 810 : 9 – 60 = 30
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/ba758cae74e6f6e329c88c0e5730644d.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/3a802c0bf9d7172dc360a8074037538f.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/e681aee23f6f32ee696abfa5ba76c72c.jpeg)
25 : 4 = 6(1) 4 : 6 = 0(4) 34 : 8 = 4(2) 29 : 6 = 4(5) 27 : 8 = 3(3) 3 : 7 = 0(3) 5 : 4 = 1(1) 12 : 25 = 0(12)
3.
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/3f3a5d4783625a2ded26841a4fe19409.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/f308c2bcd3f83e4428596bacb6af5039.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/bd411e41021a5ef90e334ee3a6b47f52.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/9b6d0f9870033a858110087e59247346.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/d467c31dca15768c22497ccf64c9b116.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/be6b07b997665ee1677738f14e8744c5.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/e7841364ff7aed2ec4a787317e71275b.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/670493343ca241cbb9a396fa5f79d285.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/16e8c5ce60144332d7931ec5df321d93.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/19d29b361f9d16bf1b0cce768c2cd7ca.jpeg)
9 : 3 = 3
123 · 3 = 369 Відповідь:
№52
1.
(63 : 3 · 7) + (320 : 80 · 56) - (28 : 4 · 50) + (96 : 32 · 47) = 147 + 224 – 350 + 141 = 162 (128 : 16) · (240 – 180) : 80 · 125 : 5 : 30 = 8 · 60 : 80 · 125 : 5 : 30 = 5
2. Виконай ділення
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/7b1d89fb8534423f8a8b2041cfc167f0.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/6252a3f8321a28b738d20a090e12b3f1.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/0d32dcfd3099d86894f689c1373924ff.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/78fc7f7a5d711ee1741234b87d4ad97a.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/993d3cdc4771b8bc79f841dbe832727a.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/2bee0a5b7a5be7471d94b067550569b2.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/ce87cd43e57bcee5742054144450a30b.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/a1ad8fc2f2b57d8b12a97fd284ef43e5.jpeg)
Сторінка №53
4.
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/b0a8d1da94155131221fc0d579bd1aec.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/2687c6c31630028cb69d508f77b13fca.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/a4c9ba303e94df2d8a9bdb8b619585fe.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/b9ab844d3247282794599db29963f384.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/8ff22850afbd69250999b32d6a7fe6e8.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/5e332a22c8792d345ab7d47a63d08ab3.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/5f0e6fe0f26e1dd1306db3dbf0d83a70.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/53a48a655ec1020acc16b1cf027b1b97.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/fef0ef6b0b5cc9418460545197ef15b4.jpeg)
(312 : 4 + 549 : 3) · 2 = (78 + 183) · 2 = 261 · 2 = 522
(245 : 5 · 8 + 672 : 3) : 4 = (49 · 8 + 224) : 4 = 616 : 4 = 154
(535 : 5 – 147 : 7) · 9 = (107 – 21) · 9 = 86 · 9 = 774
(984 : 3 – 968 : 4) · 3 = (328 – 242) · 3 = 86 · 3 = 258
(224 : 7 + 344 : 8) : 5 = (32 + 43) : 5 = 75 : 5 = 12 1000 - (368 : 4 – 189 : 9) = 1000 - (92 – 21) = 1000 – 71 = 929 7.
(560 : 40 · 7 : 14 · 25) - (96 : 48 · 63 : 21 · 18 : 1) = 175 – 108 = 67
(208 : 52 · 87) + (128 : 16 : 4 · 1) - (63 · 2 : 14) - (760 : 190 · 0)
27 · 10 = 270 320 : 10 = 32 7 · 100
способом укрупнення
обчислення?
840 : 70 = 840 : 10 : 7 = 84 : 7 = 12
840 : 70 = 84 десятки : 7 десятків = 12
4 · 230 = 2 · 23 · 10 = 46 · 10 = 460
4 · 230 = 4 · 23 десятки = 63 десятки = 630
4. Виконай
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/8c68d5a6f6988a8f9293d972505aed08.jpeg)
5.
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/ad14f83483ef1b66b314479ba9defb26.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/bb99cedafd5cd37c73b7282ee873a685.jpeg)
№55
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/ed5fd791c8bf6800652570454ebfae78.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/6ae51766c234c6983b8242c119eb5ce7.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/4edde5b336b357378222e9cbe43287f3.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/b6aa0e73192231a7ee50f4c3300bdd46.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/eff1ed472f23815099a8f79c119722dc.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/93be17a6721439a5563f1cd4763c7fb0.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/8c82a5fdf41d6c7f4f95d31e9705e3c9.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/5e27c821fa1089455230b1e6168878cb.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/b7769c22ae0baae89c0feda900965073.jpeg)
150 : 5 = 30
30 : 6 = 5 Відповідь: вона
150 : 6 = 25 25 : 5 = 5
· p – 568 : p 124 · 4 – 568 : 4 = 496 – 142 = 354 124 · 8 – 568 : 8 = 992 – 71 = 921
(875 – 749 : 7 + 24) : p – 296 : p (875 – 107 + 24) : 4 –
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/ced9e46f452312a868ba8b229018dec4.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/3235be237dcad0ec12cf6418278ab357.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/88c42d4287e4174394493697e9bac80e.jpeg)
27 · 30 = 27 · 3 · 10 = 81 · 10 = 810
27 · 30 = 27 · 3 десятки = 81 десяток = 810
510 : 30 = 510 : 10 : 3 = 51 : 3 = 17
510 : 30 = 51 десятків : 3 десятки = 51 : 3 = 17 3.
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/25d924595bca9e72c1b348028dc572e0.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/225bc851829e58ed911bba00f2fd06f2.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/e1550fb69ceaf8d355680eeff86f5931.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/eb35133fa16c6153fb5e6efd28bcd7bf.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/b686ce3e0424ae63d06c5102112c09c8.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/1b911277d93bab606460e68a4a43261d.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/868475bc3d22fc00fcde8476e341f0a2.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/9bfd3c40bb6bc2f64214fba2badb4c8a.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/98f0093fda5b0c530c06657c3a2f8b0e.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/45790339f3803378436d4566a1979b0f.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/72832993ea4108270400c82810ca6deb.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/e60a7c77546af58612aed6c59eb83de5.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/5a8acd15b2aa814b4291ba94abc570d4.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/b174aed1a9f647eff59b48f338169f05.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/509608f6557b329bedd0fdbc0b2cde22.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/b92f6c2aba3ccdf279db0b12161f0036.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/5ac242d14255c81e593cbd4947ade175.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/f91a3d2dfc1a60030840e3681feb1081.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/8a6e290e051b876cc72c1581a1a70d08.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/22e08d24e04a4bdb7056fde058de938c.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/6db7fcf6169eae2035ad8527d4204aae.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/5ed9c1bf1e040657c2f59c77b079963d.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/8c34408dea425b6d669b8685481d1675.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/d624898a55144da36940098c54744562.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/6873133247cc17f33c2f6a2c81079138.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/5d62d06b7f4908ce141821475b237b86.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/b46714ccad8cbdd4187bf081b9d40774.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/1e7049d4f6d3199d241cbd8ab438cebb.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/630690702452f08e41e32b302b0cfb20.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/e846ad3d66b5cb930881adde95fd55ae.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/4a16ab19c77fc9475dd23aedf1dc9629.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/63aef018427193eefc22cff8b3072a95.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/6013714b7e598dbbd85655f3a4d73300.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/a908fd817cbf4792feb2f5c59327bf69.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/37979c197ca28d64ff391f50b2b53641.jpeg)
81 < 111
Сторінка №59
7. Розв’яжіть
1)
200 : 4 = 50
50 · 2 = 100
2)
600 : 3 = 200
200 : 4 = 50
600 : 4 = 150
150 : 3 = 50
50 + 20 = 70
70 · 4 = 280
50 · 4 = 200
20 · 4 = 80
200 + 80 = 280
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/a59d76293003a7fe3135f77d1ae9ac27.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/87c0b7a2b482e709602f921a36362aab.jpeg)
420 : x = 43 + 17 p · (510 : 17) = 240
420 : x = 60 p · 30 = 240
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/e4bd0da4e618b7372a438063c8f84259.jpeg)
– k = 67 + 28
x = 420 : 60 p = 240 : 30 k = 180 – 95 x = 7 p = 8 k = 85
7 + 8 + 85 = 100
Сторінка №60
1.
6 од
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/ce387892c6cc49f2e6f65805ba94c60f.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/7a5cb1e3746e167fb3e6beb8251ea36b.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/41fc0fb9d9606de39ae007829e5e5f10.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/88561e52f615cb1bc1e867fe3a7330e2.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/771471cde62da9bb3c958976508afa5b.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/1bdda382598a6bf3689a46360f38fd53.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/ed9b4fbbf5a6e35856b5d2496c475f44.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/059434033487aacce1fb762e6feed08a.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/4dbd18baa30a776062d4f6b322add335.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/c9e58f6fb38712f98d8ab45de327c3c6.jpeg)
4 · 5 = 20
2)
4 : 2 = 2
2.
20 : 5 = 4
2)
140
20
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/b2f4b3681336d64e62942547a3f89ef4.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/2d9d8c236ce5321b8a53f704e435ee65.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/1fa6684d0c015cad29ab20f9633e0a06.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/086e61228468153ae89e5f868a10a2c8.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/a529e4f08cce6318e093e1177ad4ef89.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/2b9fe55c89a6732656b370f348f02dc0.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/33a660d6b87122f0d4bfe46d86b88824.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/5c788deafeab5704f4c6409e983e94e1.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/f9f8f978934a5cf972dd5dd096412935.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/81a966f6aff97bf6f27d57ba13d19ad3.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/19f25a8a68950a0728094649dfe0e249.jpeg)
6.
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/98d2ee525f640357d0960eda610b9827.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/2f172c6d61c0e38c02c6f293e90d7ca9.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/38432c07e6f005ff76f8ba04988c9763.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/9fc310714b0ca1059d812cf0bd5733cd.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/fc221f3ce7c5f6125f3e9da55e63e82b.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/999c2817b666d3db514953f13b6b221c.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/e7b71c5d8c0c6a771aa594820a6ac4dd.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/f402eb94a0486c4a61282653e467b21d.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/3d8bf0babf499013c1b902f2bb1f7747.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/77678fde012a06cb45ea778bd8e56209.jpeg)
№64
720 : 6 = 120
120 : 4 = 30
30 · 5 = 150
720 : 4 = 180
180 : 6 = 30
30 · 5 = 150
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/cd88352d95912cb4d99f7a78cdf7cbc1.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/80201238617e4d1cff4f4b38918d0b14.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/7c9cfa6f0d956529e410f09d30b08f78.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/5a97364f0408b2e2c8a0d1de8bc020ee.jpeg)
((420 : 30) · (95 : 19) : 35 · (68 : 4) + (32 : 16 · 27)) : 44 = (14 · 5 : 35 · 17 + 54) : 44 = (34 + 54) : 44 = 88 : 44 = 2
2.
1)
35 · 2 = 70
2)
420 : 3 = 140
140 : 4 = 35
35 · 2 = 70
: 4 = 105 105 : 3 = 35 35 · 2 = 70
24 : 3 = 8
8 · 5 = 40
40 : 5 = 8
8 · 3 = 24
24 · 2 = 48
4. Виконай множення письмово
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/97b895985fea3749c57e91fc40a8dd53.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/e486dace73d1720f787a3d3f2bc0574e.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/e2e26f8deaec48ef268aa1b1b0d119fa.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/4df22a0dda0fe11b8e62dd69f1ace56e.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/9c9279564e5421041f3b3ab3f21f79d4.jpeg)
5.
1) 28 · 32 : 7 + (43 · 23 – 896) = 28 · 6 + 93 = 168 + 93 = 261
2) (623 : 7 · 11 – 67 · 12) : 5 = (89 · 11 – 804) : 5 = 175 : 5 = 35
3) (19 · 51 – 508 : 4) : 2 – 368 = (969 – 127) : 2 – 368 = 421 – 368 = 53
4) (734 + 166) : 100 · 63 – 389 = 9 · 63 – 389 = 178
цифр значення частки.
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/fef3c8b511a9449ce1ec20b1df91c9ec.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/d659d2c0700bf07abf5ab0c26b23cc45.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/a9b144e9b3066a96bdbf42fde1138562.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/ea222b1351a7f7e177d45875ec82b927.jpeg)
(432 – 278) + k = 208 p · 23 = 79 + 59
710 + k = 208 p · 23 = 138 k = 710 – 208 p = 138 : 23 k = 502 p = 6
204 : b = 504 : 84 207 : 69 · y = 42 204 : b = 6 3 · y = 42 b = 204 : 6 y = 42 : 3 b = 34 y = 14
502 + 6 + 34 + 14 = 502 + 6 + 48 = 550 + 6 = 556
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/05ff6f8fa472dd01fe69c253c6589c94.jpeg)
x + 10 — другий гончар
x + 20 — третій гончар
x + x + 10 + x + 20 = 90
3x + 30 = 90
3x = 60
x = 20 — виготовив 1 гончар
x + 10 = 30 — виготовив 2 гончар
x + 20 = 40 — виготовив 3 гончар
Сторінка №68
1. Виконай арифметичні дії ((640 : 40) · (96 : 48) : 32 · (72 : 6) + (108 : 12 · 23)) - 200 = (16 · 2 : 32 · 12 + 207) - 200 = = 219 – 200 = 19
2. Розв’яжи задачу 1.
2)
648 : 6 = 108
108 : 9 = 12
12 · 5 = 60
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/b240349818e6adcd7ef43cae2adc429e.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/4b3e4cfb582617d32ccb57fbb0e9e35e.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/f267a86fb38a9e9901c42e22cf0637f3.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/8a61a4b44881833b884e461ae647aa53.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/7f708d6bd325721490c5193ecb570ad0.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/2793b155dd12e72a4edb3cacef1d5c4d.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/e662c1df9990dc7f0bcffc67170a72e7.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/e9e3300f04fb457e17cccb4b948c829b.jpeg)
17 + d > 25 s – 23 > 19 34 – q > 17 d = 25 – 17 s = 23 + 19 q = 34 – 17 d = 8 s = 42 q = 17 ..., 7, 8>, 9, 10 ... ..., 41, 42>, 43, 44 ... ..., 16, 17<, 18, 19 ...
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/0d54593341600bdb24981f3bbc8974ba.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/933e1ea63e35b38472a7be1d67d129b1.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/8b84cd6735126cddc88dac0c70024f26.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/5240db27ca37375e76fc9c44edd97c64.jpeg)
прикидку
153 : 17 = 9 9 · 17 = 153
140 : 35 = 4 4 · 35 = 70
4. Виконай
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/a1987e1fd7ff3ac8621b0ac1136a32c0.jpeg)
число?
Сторінка №71
5. Розв’яжи задачу 1
1) За 8 рейсів 3
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/617c80c3971a3e1a02afebb303633448.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/532a414b5a809f997a6de742f341c206.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/96bed82b54c7dd5f5764f6a7c5ce6c8f.jpeg)
240
30
240 : 8 = 30
30 : 3 = 10
50 : 10 = 5
Сторінка №72
1.
720 : 60 = 720 : 10 : 6 = 72 : 6 = 12
960 : 40 = 960 : 10 : 4 = 96 : 4 = 19
560 : 70 = 560 : 10 : 7 = 56 : 7 = 8
2.
56 : 10 = 5(6) → 5 · 10 + 6 = 50 + 6 = 56
345 : 100 = 3(45) → 3 · 100 + 45 = 300 + 45 = 345
546 : 50 = 546 : (10 · 5) = (546 : 10) : 5 = 54 : 5 = 10
564 : 80 = 564 : (8 · 10) = (564 : 10) · 8 = 56 : 8 = 7
452 : 50 = 452 : (5 · 10) = (452 : 10) : 5 = 45 : 5 = 9
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/dfb34cdaf48719eb431d327be35ff052.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/afc91a06653f82810dd18d9826701e0f.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/9985b36ff4ac63bb2b2c31c95dbfa778.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/835529839821c10b95904dff910878da.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/24833c1645bd15d376412eaf742b24c4.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/c65bcb3f5eccc28544495260959d8b86.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/a04bd6302c83bfb6ccd79d4ae05b883d.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/293d9fb4e524a82e5d7e17e32fc12094.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/99154be4d7e469edbc279e688a6ac17a.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/bb937889ecb74611f67e8932cf2a7b0a.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/91fb537405c52d9fb49f2972d60d73dd.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/d931aa577d9f876726a2893be43a6382.jpeg)
18 : 3 = 6
6 · 7 = 42
2)
36 : 2 = 18 18 : 3 = 6
6 · 7 = 42
36 : 2 = 18
18 : 3 = 6
42 : 6 = 7 Сторінка №74
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/1fed6cefbd92ab88f704cdef6675ad91.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/0fad6ca705d82fcf622eb686a6f044f1.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/424a80be9f1087daec65e30c37946d44.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/d91af625410587c3d800947f5e472263.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/38cd197fb779039f8c5ccf4a169fd950.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/e2b0c022bfd84eb5436e6484dad34145.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/8063551f222f540c14a6ea0c9aa7d3d9.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/90f7318c116f04344938101fd4604fae.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/32faf665c8c99c1952d2b9e6740fb971.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/710a2744ff485b7d372d9ff29a2099ee.jpeg)
5.
1)
60 : 20 = 3
3 · 4 = 12
12 · 9 = 108
2)
180 : 9 = 20
20 : 4 = 5
5 · 20 = 100
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/cfc076240a3680279f9107efb3672c77.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/fadfa15c1541fdbbcfd20f3c9efcba8a.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/7879680285c453f44c7aa91ee08c2b1c.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/dff1c6b5ce4d8d86eb057dae03f4947e.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/08e9670b3b6031f89205f77f7d30f529.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/5e145d513b27ca86b3a6823468ce5f3b.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/d6f0d211b97ecc138047a90306aa5d0d.jpeg)
Потягом номер 92
Сторінка №76
1. До кожної
1)
2
5
12 : 2 = 6
6 · 5 = 30
30 · 3 = 90
1
1
1
1
7 · 3 = 21
5 · 3 = 15
21 + 15 = 36
— 7 шт
— 5 шт
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/6bdd82aa529e1901112061b254fc90cf.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/387a48454196f1fb2608fed25518d84c.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/46a6dc8401d7b8df6eb01aab33644429.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/73c55105362ff6607ef458ea5742f493.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/820460c9dda0f448b1ef829cd6642535.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/c1305ce6ffd80ef447dd89ef64598a6c.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/3018ab027267fbc75130df8215761f52.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/530e82933f8c380924fe004eb6edfc75.jpeg)
x = 45 – 19 h = 12 : 2
x = 26 h = 6
d = 3 · 7
d = 21
..., 25, 26<, 27, ... ..., 5, 6<, 7, ... ..., 20, 21>, 22, ...
25, 24 5, 4 22, 23
розв’язання?
45 – x > 114 : 6 h · 60 < 60 : 5
x = 45 – 19 h = 12 : 2 d = 3 · 7
d : (84 : 28) > 7
x = 26 h = 6 d = 21 ..., 25, 26<, 27, ... ..., 5, 6<, 7, ... ..., 20, 21>, 22, ... 25, 24 5, 4 22, 23
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/5bab40beb22ee40afc50b2cc642688dc.jpeg)
5. Віднови розв’язання 6. Накресли прямокутник ABCD
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/26d78aed73a807a388ad5f48da964978.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/e5b276745e36e181d5c9fa87368cb608.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/b6c8a3e1d4242139e858e2aa10605a02.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/a7610c43635198a77a216ab9b4b57139.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/23e4e76a568e42a7fff568cd07715cef.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/e26a24b528679955eee2fe65ae89c1c9.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/9009945631f73179917b364cc3841b78.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/83423c8cad1a6413196dc5f8f2d3d40b.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/46d9a8356770e853736f56a4b8bc11c4.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/990974f48af75b32527da0a3746102fb.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/2a5665c8c0a52cec0943464adfde88b3.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/68737100aef7fff7bfe0101a9dd25a6b.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/6f4315c0825b711bcadfbfda057b3455.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/45dee64fa8537377fac47cc6dd37ac4d.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/b0d53f851b7792ddb4faf45a5004b340.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/6bc5c4141bbdc6ecdc3bd4231a21b4d2.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/982e9ff0c372a8d4e6f164c2da5c4978.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/cd3cba0d89e416b5a1fa88f3e46bbd42.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/6633884a556189b7d8e9aa1412efcf31.jpeg)
![](https://assets.isu.pub/document-structure/241024052903-ce5de98c35d6e7b999f2ae99702a41db/v1/6633884a556189b7d8e9aa1412efcf31.jpeg)