PREISSMURPHY A&A
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Contents 3A Super Numbers Number and Number Words Place Value Rounding to the Nearest Ten Estimating by Rounding Numbers
5 6 7 8
Database rights Preiss Murphy A&A Education Group (maker). First published 2019 2019 2020 2021 2022 2023 ISBN 978-9-957-37510-2
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A&A Maths 3 By HM Hison
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3B Geometry Is Fun! Lines, Segments, Rays and Angles Geometry Perimeters Scales and Maps Graphs Bar Graphs School Statistics Fish Bubble Line Graph Coordinates On a Graph Time: Minutes
9 10 11 12 13 15 16 17 18 19
3C Sums and Differences One-Digit Addition Two-Digit Addition Regrouping in Addition In the Deep Blue Sea Addition Path to the Picnic Addition: Regrouping to the Thousands Sowing Seeds Addition Chicken Addition One-Digit Subtraction Two-Digit Subtraction Subtraction Regrouping in Subtraction Riddle Subtraction Subtraction Path 1, 2, 3, Subtraction! Addition and Subtraction Problem Solving Review
20 21 22 23 24 25 26 27 28 29 30 31 35 36 37 38 39 41 42
Contents 3D
3E
3F
3A
3A Number and Number Words Write the number words as numbers.
Multiplication and Division Are Cool! Multiplication Multiplication With Zero and One Multiplication Fun With Factors Multiplication Table Multiplication Word Problems Division Division By Zero and One Division Practice Word Problems: Multiplication and Division
48 49 50 51 52 53 54 57 58 59
Fractions and Decimals Fractions Fractions: Equivalents Fractions and Division Comparing Fractions Decimals Matching: Decimals and Fractions Writing Decimals Decimals: Addition and Subtraction
60 61 62 63 64 65 66 67
Measurements and Money Measurements: Centimetre Measurements: Foot, Yard and Mile Money as Decimals Measurements: Grams and Kilograms Money: Comparing Amounts Money How Much Change Do I Have? Review
Super Numbers!
68 69 70 71 72 73 74 75
Example: four hundred and sixty-two = 1. three hundred twenty thousand, one hundred and thirty-one ________ . eight hundred and seventy-three thousand, six hundred and forty-five ________ . seven hundred and nine thousand, two hundred and ninety-four ________ . six hundred and eighty-nine thousand, six hundred and three ________ Write the number that is more or less. . Write the number that is three more than
,
. ____________
. Write the number that is six less than
,
. ____________
. Write the number that is ten less than
,
. ____________
. Write the number that is ten more than
,
. ____________
Write these number words. . .
, ,
______________________________________________________ ______________________________________________________
55
3A Rounding to the Nearest Ten
3A Place Value
Write Writethe thecorrect correctnumber numberfor foreach eachplace placevalue valueororwrite writethe thenumber. number.
Example:
hundreds tens ones
thousands
hundred thousands ten thousands
millions
3 , 1 7 6 , 2 8 4
15
1. The number 7,5 3 1,04 2 has ____ thousands ____ tens ____ millions ____ ones ____ hundreds 2. What number has 3 ones 9 hundreds 4 hundred thousands
Round the numbers.
____ hundred thousands ____ ten thousands
2 millions 6 ten thousands
7 tens 5 thousands
round up to 20
32
round down to 30
8
36
11
73
62
92
59
46
41
48
83
27
69
64
56
round up to 60
The number is __________________________________ . 3. The number 5, 0 1 3, 9 8 6 has ____ ten thousands ____ millions ____ ones ____ thousands ____ hundred thousands 4. What number has 4 millions 3 hundreds 8 hundred thousands
66
0 tens 5 ten thousands
____ hundreds ____ tens
5 thousands 2 ones
The number is __________________________________ .
77
3A Estimating by Rounding Numbers Fill out the table. Estimate by rounding numbers to the given place value. Use the rules below. Round 3 7 2 to the nearest hundred. Look at the digit in the place to be rounded.
372
Then, look at the digit to its right.
372
The digit being rounded doesn't change if the digit to the right is less than 5. The digit being rounded increases by 1 if the digit to its right is 5 or more. Then, digits to the right of the place that is rounded become 0s. Digits to the left don't change.
372 Rounds to 400
Example: Round 5,4 9 5 ... to the nearest thousand 5,4 9 5 4 is less than 5. The 5 stays the same. 5,0 0 0
to the nearest hundred 5,4 7 5 7 is more than 5. The 4 is rounded up to 5. 5,5 0 0
NUMBERS TO BE ROUND TO THE NEAREST ROUNDED THOUSAND
3,8 1 6 1 2,7 3 1 7,9 2 8 1 ,2 1 7 6,1 0 9
88
8,8 1 5
to the nearest ten 5,4 7 5 5 = 5. The 7 is rounded up to 8. 5,4 8 0
NEAREST HUNDRED
NEAREST TEN