CLASS 6 MATHS WORKSHEET PLAYING WITH NUMBERS This worksheet is for class 6 maths, comprising the topic of Numbers. It will help students to have a better understanding of numbers.
1. Find the greatest and the smallest of the following numbers a. 654, 54684,18,175,169 Ans. Greatest ___ Smallest ___ b. 84, 846, 841, 86,158 Ans. Greatest ___ Smallest ___ c. 84, 78, 45, 97, 85 Ans. Greatest ___ Smallest ___ d. 564, 846, 484, 847, 864 Ans. Greatest ___ Smallest ___ e. 7845, 658, 621, 4646 Ans. Greatest ___ Smallest ___ f. 846, 484, 571, 961, 546 Ans. Greatest ___ Smallest ___ g. 254, 213, 5431, 458,1561 Ans. Greatest ___ Smallest ___ h. 78, 45, 96, 54, 82, 12, 23 Ans. Greatest ___ Smallest ___ i. 78,154,16,151, 254, 51,15 Ans. Greatest ___ Smallest ___ j. 784, 516, 851, 24, 568, 546 Ans. Greatest ___ Smallest ___ 2. a. b. c. d. e. f. g.
Write the factors of the following numbers 32 45 65 200 99 121 79
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h. i. j.
45 22 23
3. a. b. c. d. e. f. g. h. i. j.
Write first three multiples of each of the following numbers 57912 15 13 78 100 200 10 -
4.
Which number is the factor of every number?
5. a. b. c. d. e.
Write all the prime numbers between the following: 10 - 20 20 - 3030 - 40 40 - 50 50 - 60 -
6. a. b. c. d. e. f. g. h. i. j.
Write the prime factorization of the following numbers: 84 28 65 37 89 99 44 121 45 22 -
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7. Fill the table with ‘Yes’, wherever applicable. The first number has been solved as an example. Number
Divisible by 2
152
Yes
3
4 Yes
5
6
7
8
9
Yes
84 657 23 75 12 165 85 99 100
8. a. b. c. d. e.
Find the HCF of the following numbers: 21, 24 15, 45 78, 13 91, 13 23, 97 -
9. a. b. c. d. e.
Find the LCM of the following numbers: 45, 84 84, 75 25, 15 75, 5 99, 3 -
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ANSWERS 1. Find the greatest and the smallest of the following numbers: a. 654, 54684, 18, 175,169 Ans. Greatest - 54684, Smallest - 18 b. 84, 846, 841, 86,158 Ans. Greatest - 846, Smallest - 84 c. 84, 78, 45, 97, 85 Ans. Greatest - 45, Smallest - 97 d. 564, 846, 484, 847, 864 Ans. Greatest - 484, smallest - 864 e. 7845, 658, 621, 4646 Ans. Greatest - 7845, Smallest - 621 f. 846, 484, 571, 961, 546 Ans. Greatest - 961, Smallest - 484 g. 254, 213, 5431, 458, 1561 Ans. Greatest - 5431, Smallest - 213 h. 78, 45, 96, 54, 82, 12, 23 Ans. Greatest - 96, Smallest - 12 i. 78, 154, 16, 151, 254, 51,15 Ans. Greatest - 254, Smallest - 15 j. 784, 516, 851, 24, 568, 546 Ans. Greatest - 784, Smallest - 24 2. Write the factors of the following numbers: a. 32 - 1, 2, 4, 8, 16, 32 b. 45 - 1, 3, 5, 9, 15, 45 c. 65 - 1, 5, 13, 65 d. 200 - 1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200 e. 99 - 1, 3, 9, 11, 33, 99 f. 121 - 1, 11, 121 g. 79 - 1, 79 h. 45 - 1, 3, 5, 9, 15, 45 i. 22 - 1, 2, 11, 22 j. 23 - 1, 23 3. Write first three multiples of each of the following numbers:
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a. b. c. d. e. f. g. h. i. j.
5 - 5, 10, 15 7 - 7, 14, 21 9 - 9, 18, 27 12 - 12, 24, 36 15 - 15, 30, 45 13 - 13, 26, 39 78 - 78, 156, 234 100 - 100, 200, 300 200 - 200, 400, 600 10 - 10, 20, 30
.4. Which number is the factor of every number? Ans. 1 5. Write all the prime numbers between the following: a. 10 - 20: 11, 13, 17, and 19. b. 20 - 30: 23 and 29. c. 30 - 40: 31 and 37. d. 40 - 50: 41, 43, and 47. e. 50 - 60: 53, 57 and 59. 6. Write the prime factorization of the following numbers: a. 84 - 2 x 2 x 3 x 7. b. 28 - 2 x 2 x 7. c. 65 - 5 x 13. d. 37 - It is a prime number. Therefore, 37x1. e. 89 - It is a prime number. Therefore, 89x1. f. 99 - 3 x 3 x 11. g. 44 - 2 x 2 x 11. h. 121 - 11 x 11. i. 45 - 3 x 3 x 5. j. 22 - 2 x 11. 7. Fill the table with yes, the first one is done as an example. Number
Divisible by 2
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3
4
5
6
7
8
9
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152
Yes
84
Yes
657
Yes Yes
Yes
Yes
Yes
Yes
Yes Yes
23 75 12
Yes Yes
165
Yes Yes
85
Yes Yes
Yes Yes Yes
99
Yes
Yes
100
Yes
Yes
8. Find the HCF of the following numbers: k. 21, 24 - 3 l. 15, 45 - 15 m. 78, 13 - 13 n. 91, 13 - 13 o. 23,97 - 1 9. Find the LCM of the following numbers: p. 45, 84- 1260 q. 84, 75 - 2100 r. 25,15 - 75 s. 75, 5 - 75 t. 99, 3 - 99
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