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Published byAnn Johnson Modified over 9 years ago
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Rounding up – and down! Mental Mathematics Starters Activity 3a
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Mathematics Objective Y4: Round any positive integer less than 1000 to the nearest 10….
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Using this should help you learn: To say which ten a given number is the nearest to. Target = 17 correct
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1. Write this to the nearest ten: 63 137
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2. Write this to the nearest ten: 48 711
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3. Write this to the nearest ten: 23 472
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4. Write this to the nearest ten: 82 235
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5. Write this to the nearest ten: 12 346
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6. Write this to the nearest ten: 56 673
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7. Write this to the nearest ten: 27 857
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8. Write this to the nearest ten: 7 423
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9. Write this to the nearest ten: 39 728
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10. Write this to the nearest ten: 98 561
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11. Write this to the nearest ten: 99 998
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12. Write this to the nearest ten: 55 336
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13. Write this to the nearest ten: 42 683
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14. Write this to the nearest ten: 14 547
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15. Write this to the nearest ten: 31 145
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16. Write this to the nearest ten: 4 859
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17. Write this to the nearest ten: 77 414
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18. Write this to the nearest ten: 94 962
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19. Write this to the nearest ten: 36 975
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20. Write this to the nearest ten: 61 122
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Evaluation... Did you: Say correctly which ten at least 17 of these numbers were nearest to?
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