Free · Class 1–5 · 3 worksheets · answer keys · practise online · set 53

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 53
Name:Date:Score:    / 20

Solve in your head.

  1. 10 − 5 =
  2. Double 2 =
  3. 12 − 10 =
  4. 40 + 6 =
  5. 10 − 9 =
  6. 90 + 9 =
  7. 60 + 8 =
  8. 16 − 5 =
  9. 8 + 2 =
  10. 7 + 6 =
  11. 13 − 7 =
  12. 17 − 11 =
  13. Double 4 =
  14. 16 − 10 =
  15. Double 8 =
  16. 14 − 10 =
  17. 17 − 8 =
  18. 20 − 16 =
  19. 16 − 8 =
  20. 10 + 3 =

Mental maths — Class 3

Class 3 · Worksheet 2 · set 53
Name:Date:Score:    / 20

Solve in your head.

  1. 100 − 67 =
  2. 43 + 9 =
  3. 61 × 10 =
  4. Double 17 =
  5. Half of 96 =
  6. Half of 82 =
  7. 100 − 45 =
  8. 84 + 9 =
  9. 63 × 10 =
  10. Half of 88 =
  11. 19 × 10 =
  12. 40 + 9 =
  13. Double 37 =
  14. 100 − 88 =
  15. Half of 60 =
  16. 79 × 10 =
  17. 100 − 43 =
  18. 100 − 10 =
  19. Half of 38 =
  20. Half of 44 =

Mental maths — Class 4–5

Class 4–5 · Worksheet 3 · set 53
Name:Date:Score:    / 16

Solve in your head. Use the tricks.

  1. 55 × 11 =
  2. 34 × 99 =
  3. 108 × 5 =
  4. 135 + 99 =
  5. 36 × 99 =
  6. 68 × 99 =
  7. 72 × 99 =
  8. 180 × 5 =
  9. 24 × 25 =
  10. 50 × 11 =
  11. 82 × 5 =
  12. 62 × 5 =
  13. 195 + 99 =
  14. 44 × 25 =
  15. 160 + 299 =
  16. 146 + 199 =

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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.