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

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 5
Name:Date:Score:    / 20

Solve in your head.

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

Mental maths — Class 3

Class 3 · Worksheet 2 · set 5
Name:Date:Score:    / 20

Solve in your head.

  1. Double 13 =
  2. 100 − 56 =
  3. 100 − 88 =
  4. Double 23 =
  5. 57 × 10 =
  6. 100 − 52 =
  7. 60 × 10 =
  8. 29 + 9 =
  9. Double 43 =
  10. 56 × 10 =
  11. Half of 68 =
  12. Double 38 =
  13. 70 × 10 =
  14. 74 + 9 =
  15. 20 × 10 =
  16. Half of 74 =
  17. Half of 46 =
  18. Double 36 =
  19. 58 × 10 =
  20. Double 20 =

Mental maths — Class 4–5

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

Solve in your head. Use the tricks.

  1. 56 × 99 =
  2. 21 × 11 =
  3. 35 × 11 =
  4. 38 × 11 =
  5. 411 + 499 =
  6. 12 × 25 =
  7. 333 + 99 =
  8. 96 × 5 =
  9. 52 × 25 =
  10. 60 × 11 =
  11. 73 × 99 =
  12. 28 × 25 =
  13. 122 × 5 =
  14. 65 × 11 =
  15. 88 × 99 =
  16. 70 × 5 =

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.