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Free · Class 1–5 · 3 worksheets · answer keys · practise online · set 7

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 7
Name:Date:Score:    / 20

Solve in your head.

  1. 3 + 8 =
  2. Double 6 =
  3. 70 + 8 =
  4. 18 − 3 =
  5. Double 1 =
  6. 3 + 5 =
  7. Double 8 =
  8. 18 − 4 =
  9. 19 − 13 =
  10. 30 + 4 =
  11. 19 − 8 =
  12. 10 + 2 =
  13. 7 + 7 =
  14. 80 + 8 =
  15. 3 + 10 =
  16. 4 + 4 =
  17. 80 + 7 =
  18. 5 + 3 =
  19. 18 − 10 =
  20. 60 + 7 =

Mental maths — Class 3

Class 3 · Worksheet 2 · set 7
Name:Date:Score:    / 20

Solve in your head.

  1. Double 43 =
  2. 16 × 10 =
  3. Half of 62 =
  4. Half of 84 =
  5. 20 × 10 =
  6. 100 − 90 =
  7. Double 12 =
  8. Double 44 =
  9. 66 × 10 =
  10. Half of 48 =
  11. Half of 96 =
  12. Double 33 =
  13. Double 21 =
  14. 100 − 88 =
  15. 39 + 9 =
  16. 49 × 10 =
  17. 27 + 9 =
  18. Half of 72 =
  19. 59 × 10 =
  20. Half of 20 =

Mental maths — Class 4–5

Class 4–5 · Worksheet 3 · set 7
Name:Date:Score:    / 16

Solve in your head. Use the tricks.

  1. 283 + 499 =
  2. 48 × 5 =
  3. 85 × 99 =
  4. 222 + 299 =
  5. 12 × 25 =
  6. 85 × 11 =
  7. 86 × 11 =
  8. 152 + 399 =
  9. 387 + 199 =
  10. 36 × 25 =
  11. 20 × 25 =
  12. 48 × 99 =
  13. 62 × 5 =
  14. 90 × 11 =
  15. 17 × 99 =
  16. 54 × 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.