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Math 2 · Unit 8: Numbers to 100 (2) · Cambridge Primary Maths Stage 2

8.1 Numbers in words, rounding and regrouping

16 questions · e.g. Which number is eighty-six?

Practice

Questions

  1. 1. Which number is eighty-six?

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  2. 2. Which number is forty-seven?

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  3. 3. How do you write 62 in words?

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  4. 4. Round 51 to the nearest 10.

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  5. 5. Round 68 to the nearest 10.

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  6. 6. Round 45 to the nearest 10.

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  7. 7. A number rounds to 50. When you add 1, it rounds to 60. What is the number?

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  8. 8. Zara rounds 50 to 60 because '5 rounds up'. What is her mistake?

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  9. 9. Which is a way to regroup 24?

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  10. 10. Forty-two add twenty equals …

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  11. 11. Ninety-seven subtract fifty equals …

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  12. 12. Round 94 centimetres to the nearest 10 centimetres.

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  13. 13. Round 26 metres to the nearest 10 metres.

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  14. 14. 49 is split into 3 numbers. One is 23. Which could the other two be?

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  15. 15. Seventy-six subtract five equals …

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  16. 16. Which word uses a hyphen correctly?

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