Free · Class 1–5 · 3 worksheets · answer keys · practise online · set 13

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 13
Name:Date:Score:    / 20

Solve in your head.

  1. 40 + 7 =
  2. Double 7 =
  3. Double 1 =
  4. Double 2 =
  5. 5 + 4 =
  6. Double 3 =
  7. 4 + 4 =
  8. 9 + 4 =
  9. 6 + 10 =
  10. 12 − 2 =
  11. Double 8 =
  12. 50 + 3 =
  13. 50 + 5 =
  14. 11 − 9 =
  15. 12 − 4 =
  16. 40 + 5 =
  17. 40 + 8 =
  18. 8 + 6 =
  19. 17 − 1 =
  20. 19 − 4 =

Mental maths — Class 3

Class 3 · Worksheet 2 · set 13
Name:Date:Score:    / 20

Solve in your head.

  1. Half of 24 =
  2. 100 − 43 =
  3. 90 × 10 =
  4. 52 × 10 =
  5. 55 + 9 =
  6. Double 41 =
  7. 23 × 10 =
  8. 88 + 9 =
  9. 47 + 9 =
  10. Double 14 =
  11. Double 36 =
  12. 92 × 10 =
  13. Half of 52 =
  14. 53 + 9 =
  15. Double 21 =
  16. Half of 48 =
  17. Half of 92 =
  18. 29 × 10 =
  19. Half of 38 =
  20. Half of 76 =

Mental maths — Class 4–5

Class 4–5 · Worksheet 3 · set 13
Name:Date:Score:    / 16

Solve in your head. Use the tricks.

  1. 84 × 25 =
  2. 291 + 299 =
  3. 140 × 5 =
  4. 59 × 99 =
  5. 70 × 99 =
  6. 43 × 99 =
  7. 40 × 5 =
  8. 57 × 99 =
  9. 8 × 25 =
  10. 36 × 25 =
  11. 94 × 99 =
  12. 206 + 299 =
  13. 24 × 25 =
  14. 443 + 299 =
  15. 92 × 11 =
  16. 98 × 99 =

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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.