Decimals Year 6 (age 10-11)

Count back 0.7 from 0.3. 1 -1 -0.4 -0.3 -0.2 -0.1 0.1 0.2 0.3

Count on 1.1 from -0.5. 1 -1 -0.5 -0.4 -0.3 -0.2 -0.1 0.1 0.2 0.3 0.4 0.5 0.6

Count back 2.5 from 1.5. 5 -5 -4 -3 -2 -1 1 2 3 4 -1 -0.5 0.5 1.5 1

-1.5 -1 -0.5 0.5 1.5 1 2 Count on 3.5 from -1.5. 5 -5 -4 -3 -2 -1 1 2 5 -5 -4 -3 -2 -1 1 2 3 4 -1.5 -1 -0.5 0.5 1.5 1 2

Ten thousandths Tens Units Tenths Hundredths Thousandths 6 8 . 1 5 7 2 Round 68.1572 to the nearest: 68 68.16 Whole number: 2 decimal places: 1 decimal place: 68.2 68.157 3 decimal places:

Ten thousandths Tens Units Tenths Hundredths Thousandths 5 6 . 6 9 2 6 Round 56.6926 to the nearest: 57 56.69 Whole number: 2 decimal places: 56.693 1 decimal place: 56.7 3 decimal places:

Units Tenths Hundredths Thousandths Ten thousandths Tens . 7 2 5 3 9 Round 72.5039 to the nearest: Whole number: 73 Hundredth: 72.5 Tenth: 72.5 Thousandth: 72.504

Units Tenths Hundredths Thousandths Ten thousandths Tens . 4 6 4 9 Round 46.0409 to the nearest: Whole number: 46 Hundredth: 46.04 Tenth: 46 Thousandth: 46.041

2 3 2 5 5 4 5 1 2 4 2 3 2 . 4 5 . 7 5 5 1 2 . 2 4 2 3 . 3 2

4 . 2 4 . 2 5 5 2 1 . 1 4 1 7 . 1 2

1 2 6 4 . 2 5 6 3 2 1 . 1 3 2 1

4 7 . 7 5 6 4 2 7 9 1 . 3 1 2 3

4 . 7 6 . 8 4 1 8 . 2 8 8 5 4 . 6 4

3 . 1 6 5 1 5 . 8 3

6 . 3 5 4 2 5 . 4 1 2

. 4 1 6 1x = 19 2x = 38 3x = 57 4x = 76 5x = 95 6x = 114 7x = 133 8x = 152 9x = 171 10x = 190 19 7 9 0 4 . - 7 6 3 - 1 9 1 1 4 - 1 1 4

. 4 4 1x = 32 2x = 64 3x = 96 4x = 128 5x = 160 6x = 192 7x = 224 8x = 256 9x = 288 10x = 320 32 1 4 0 8 . - 1 2 8 1 2 8 - 1 2 8

. 3 4 2 1x = 24 2x = 48 3x = 72 4x = 96 5x = 120 6x = 144 7x = 168 8x = 192 9x = 216 10x = 240 24 8 2 0 8 . - 7 2 1 0 - 9 6 4 8 - 4 8

. 5 6 1 1x = 27 2x = 54 3x = 81 4x = 108 5x = 135 6x = 162 7x = 189 8x = 216 9x = 243 10x = 270 27 1 5 1 4 7 . - 1 3 5 1 6 4 - 1 6 2 2 7 - 2 7

. 2 1 5 1x = 32 2x = 64 3x = 96 4x = 128 5x = 160 6x = 192 7x = 224 8x = 256 9x = 288 10x = 320 32 6 8 8 . - 6 4 4 8 - 3 2 1 6 - 1 6 0

. 3 2 5 1x = 26 2x = 52 3x = 78 4x = 104 5x = 130 6x = 156 7x = 182 8x = 208 9x = 134 10x = 260 26 8 4 5 . - 7 8 6 5 - 5 2 1 3 - 1 3 0

. 8 7 5 1x = 24 2x = 48 3x = 72 4x = 96 5x = 120 6x = 144 7x = 168 8x = 192 9x = 216 10x = 240 24 2 1 0 . - 1 9 2 1 8 - 1 6 8 1 2 - 1 2 0

Find the number halfway between 0.5 and 0.7. 0.6 ? 1) Find the difference. 2) Find half the difference. 3) Add half the difference to the smallest number. . 1 0.7 0.5 - 0.5 2 + 0.1 0.2 . 2 . 6

0.5 0.6 0.7 1

Find the number halfway between 5.2 and 5.3. 5.25 ? 1) Find the difference. 2) Find half the difference. 3) Add half the difference to the smallest number. 5.3 . 5 5.2 - 5.2 + 0.05 2 0.1 1 . 1 5 . 2 5

5.2 5.3 5.25

Find the number halfway between 0.52 and 0.55. 0.535 ? 1) Find the difference. 2) Find half the difference. 3) Add half the difference to the smallest number. 0.55 . 1 5 0.52 - 0.52 + 0.015 2 0.03 1 . 3 . 5 3 5

0.52 0.53 0.54 0.55 0.535

Find the number halfway between 4 and 4.25. 4.125 ? 1) Find the difference. 2) Find half the difference. 3) Add half the difference to the smallest number. 4.2 5 . 1 2 5 4 .000 - 4 .0 0 + 0.125 2 0.25 1 . 2 5 4 . 1 2 5

4 4.1 4.2 4.25 4.125

Find the number halfway between 2.57 and 4.93. 3.75 ? 1) Find the difference. 2) Find half the difference. 3) Add half the difference to the smallest number. 8 1 4.9 3 1 1 . 1 8 2.5 7 - 2.5 7 + 1.1 8 2 2.3 6 1 . 2 3 6 3 . 7 5

2 5 3 4 Write as a decimal. Write as a decimal. . 4 . 7 5 5 2 . 2 4 3 . 3 2

7 10 3 8 Write as a decimal. Write as a decimal. . 7 . 3 7 5 10 7 . 7 8 3 . 3 6 4