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Grade 5 Doubles and Halves Worksheets

Double a number, halve a number, then work backwards from the answer.

Every sheet below is generated fresh with a matching answer key. Pick one of the three levels, preview it, and print or download the PDF — no account, no watermark. For the other grade 5 mental maths skills, see all mental maths worksheets.

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Mental Maths · Grade 5

Grade
Topic
SkillEach skill is a different kind of question, with its own levels.
Level
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30

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Grade 5 · 2 pages · A4

Mental Maths Practice

Grade 5 • Doubles and Halves • Halve it
Name:Date:

Halve each number in your head. No calculator.

  1. 1) Half of 414 =
  2. 2) Half of 412 =
  3. 3) Half of 336 =
  1. 4) Half of 288 =
  2. 5) Half of 318 =
  3. 6) Half of 366 =
  1. 7) Half of 416 =
  2. 8) Half of 374 =
  3. 9) Half of 172 =
  1. 10) Half of 154 =
  2. 11) Half of 390 =
  3. 12) Half of 398 =
  1. 13) Half of 280 =
  2. 14) Half of 196 =
  3. 15) Half of 206 =
  1. 16) Half of 442 =
  2. 17) Half of 130 =
  3. 18) Half of 384 =
  1. 19) Half of 244 =
  2. 20) Half of 492 =
  3. 21) Half of 230 =
  1. 22) Half of 180 =
  2. 23) Half of 250 =
  3. 24) Half of 292 =
  1. 25) Half of 160 =
  2. 26) Half of 310 =
  3. 27) Half of 406 =
  1. 28) Half of 188 =
  2. 29) Half of 190 =
  3. 30) Half of 216 =
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Page 1 of 2

Answer Key

  1. 1. 207
  2. 2. 206
  3. 3. 168
  4. 4. 144
  1. 5. 159
  2. 6. 183
  3. 7. 208
  4. 8. 187
  1. 9. 86
  2. 10. 77
  3. 11. 195
  4. 12. 199
  1. 13. 140
  2. 14. 98
  3. 15. 103
  4. 16. 221
  1. 17. 65
  2. 18. 192
  3. 19. 122
  4. 20. 246
  1. 21. 115
  2. 22. 90
  3. 23. 125
  4. 24. 146
  1. 25. 80
  2. 26. 155
  3. 27. 203
  4. 28. 94
  1. 29. 95
  2. 30. 108
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Page 2 of 2

What each level generates

Grade 5 doubles and halves — the exact skill behind each difficulty setting, straight from the generator.

  1. Level 1Double it
  2. Level 2Halve it
  3. Level 3Undo a double or a half

Grade levels follow the progression common to most English-language curricula — not one specific national curriculum. Every level shows exactly what it generates, so you can check the fit with your own program. See the full scope & sequence →

More Grade 5 mental maths skills

Each one generates a different kind of question, with its own three levels and answer key.

Frequently asked questions

▸What mental maths topics come up in Grade 5?

Multiplying and dividing beyond the basic facts, doubling and halving two- and three-digit numbers, and finding fractions of amounts such as 1/4 of 60 or 3/5 of 45. Six sheets cover exactly those skills, each with its own three levels.

▸How do you find a fraction of a number in your head?

Divide by the denominator, then multiply by the numerator. For 3/5 of 45: 45 ÷ 5 = 9, then 9 × 3 = 27. Every amount on these sheets divides exactly, so the answer is always a whole number.

▸Why practise doubling and halving at Grade 5?

Because they unlock far more than they look like. Halving gives you a half, a quarter and 50% instantly, and doubling turns multiplying by 4 or 8 into two or three easy steps — both are the backbone of quick mental arithmetic later on.

▸What does the Mixed Chains sheet generate?

Two-operation chains at its middle level — 34 × 6 + 47, 468 ÷ 12 + 52 — with add-and-take-away below it and four numbers in a row above. The multiplication or division comes first, so the order of operations never makes a question ambiguous, and every intermediate step stays a positive whole number.