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Free · Class 1–5 · 3 worksheets · answer keys · practise online · set 4

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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🧠 The worksheets

🔄 New set of questions

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 4
Name:Date:Score:    / 20

Solve in your head.

  1. 6 + 6 =
  2. 10 − 6 =
  3. 50 + 1 =
  4. 90 + 1 =
  5. Double 3 =
  6. 2 + 6 =
  7. 10 + 9 =
  8. 70 + 3 =
  9. 70 + 6 =
  10. 16 − 8 =
  11. Double 8 =
  12. 12 − 12 =
  13. 70 + 4 =
  14. 9 + 6 =
  15. 14 − 5 =
  16. 5 + 3 =
  17. 30 + 1 =
  18. 10 + 8 =
  19. 9 + 4 =
  20. 20 + 1 =

Mental maths — Class 3

Class 3 · Worksheet 2 · set 4
Name:Date:Score:    / 20

Solve in your head.

  1. 100 − 24 =
  2. Half of 28 =
  3. Double 29 =
  4. 41 + 9 =
  5. 63 + 9 =
  6. 36 + 9 =
  7. 100 − 36 =
  8. 87 × 10 =
  9. 62 + 9 =
  10. 35 + 9 =
  11. Double 31 =
  12. 15 + 9 =
  13. Double 27 =
  14. Half of 94 =
  15. Double 36 =
  16. 100 − 28 =
  17. 100 − 30 =
  18. Double 13 =
  19. Half of 54 =
  20. Half of 32 =

Mental maths — Class 4–5

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

Solve in your head. Use the tricks.

  1. 52 × 99 =
  2. 68 × 25 =
  3. 482 + 299 =
  4. 66 × 5 =
  5. 432 + 199 =
  6. 123 + 99 =
  7. 32 × 5 =
  8. 64 × 11 =
  9. 106 × 5 =
  10. 238 + 399 =
  11. 94 × 11 =
  12. 69 × 99 =
  13. 65 × 11 =
  14. 47 × 99 =
  15. 307 + 399 =
  16. 45 × 11 =

More worksheets

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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.