Free · Class 1–5 · 3 worksheets · answer keys · practise online · set 57

Mental maths worksheets — Class 1 to 5, with answers

Free mental maths worksheets for Class 1 to 5: quick sums, doubles and halves, × 10, × 5, × 11, × 25, × 99 tricks — solve in your head, new numbers every set.

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Mental maths — Class 1–2 (Class 1–2)Mental maths — Class 3 (Class 3)Mental maths — Class 4–5 (Class 4–5)

Mental maths — Class 1–2

Class 1–2 · Worksheet 1 · set 57
Name:Date:Score:    / 20

Solve in your head.

  1. Double 9 =
  2. 13 − 6 =
  3. 30 + 2 =
  4. 12 − 3 =
  5. 80 + 2 =
  6. 3 + 7 =
  7. 6 + 4 =
  8. 15 − 9 =
  9. 17 − 14 =
  10. 15 − 1 =
  11. 20 + 4 =
  12. Double 1 =
  13. Double 5 =
  14. 6 + 7 =
  15. 20 − 5 =
  16. 10 + 3 =
  17. 14 − 9 =
  18. 11 − 3 =
  19. 11 − 10 =
  20. Double 3 =

Mental maths — Class 3

Class 3 · Worksheet 2 · set 57
Name:Date:Score:    / 20

Solve in your head.

  1. 60 × 10 =
  2. 13 × 10 =
  3. 64 + 9 =
  4. 100 − 17 =
  5. 49 + 9 =
  6. 100 − 43 =
  7. Half of 28 =
  8. Double 11 =
  9. Half of 90 =
  10. 59 + 9 =
  11. 18 × 10 =
  12. 40 + 9 =
  13. Half of 74 =
  14. 100 − 51 =
  15. 100 − 29 =
  16. 100 − 14 =
  17. Double 44 =
  18. Half of 52 =
  19. 24 × 10 =
  20. Double 21 =

Mental maths — Class 4–5

Class 4–5 · Worksheet 3 · set 57
Name:Date:Score:    / 16

Solve in your head. Use the tricks.

  1. 176 × 5 =
  2. 68 × 5 =
  3. 392 + 399 =
  4. 12 × 25 =
  5. 288 + 399 =
  6. 487 + 199 =
  7. 55 × 99 =
  8. 38 × 5 =
  9. 68 × 25 =
  10. 52 × 25 =
  11. 86 × 11 =
  12. 434 + 499 =
  13. 162 + 299 =
  14. 62 × 5 =
  15. 364 + 299 =
  16. 88 × 25 =

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Questions

How can I improve my child’s mental maths?

Ten minutes a day: one sheet, timed, then check. Learn the tables and the tricks above, and try the TalentJR mental maths course.

Are these worksheets free?

Yes — print them or save as PDF free. Every worksheet has an answer key.

How do I get different questions?

Press “🔄 New set” — the questions change (maths numbers are new every time; English sentences are shuffled).

How do I print only one worksheet?

Press “🖨️ Print” on that worksheet. Tick “with answer key” if you want the answers on a second page.

Can my child do this worksheet online, like a quiz?

Yes — press “▶️ Practise online” on any worksheet. The questions come one at a time with instant marking, a score at the end and a review of mistakes. No sign-in is needed.