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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 360 · 40 questions
TalentJR

How to do it in your head (Look first): A 9, 19 or 99 → round and adjust. Two close numbers → count up (or near doubles when adding). × or ÷ by 4 or 8 → double or halve; other sums → split into tens and ones.

NameDateTime takenScore ___ / 40
  1. 1.26² =
  2. 2.168 ÷ 4 =
  3. 3.77 − 9 =
  4. 4.Best estimate of 278 + 139? (a) 400 (b) 600 (c) 200
  5. 5.76 − 9 =
  6. 6.465 ÷ 5 =
  7. 7.84 + 19 =
  8. 8.2 + ? = 10
  9. 9.83 + 19 =
  10. 10.37 laddoos are packed in boxes of 3. How many laddoos are left over?
  11. 11.56 + ? = 100
  12. 12.12² =
  13. 13.526 + 99 =
  14. 14.You start your homework at 3:25 and finish at 4:50. How many minutes did you work?
  15. 15.50% of ₹50 =
  16. 16.504 − 489 =
  17. 17.122 − 84 =
  18. 18.46 children stand in rows of 7. How many full rows can they make?
  19. 19.27 − 19 =
  20. 20.69 − 40 =
  21. 21.68 ÷ 4 =
  22. 22.180 ÷ 4 =
  23. 23.Half of 80 =
  24. 24.227 − 196 =
  25. 25.31 + 29 =
  26. 26.243 ÷ 3 =
  27. 27.130 − 81 =
  28. 28.Double 64 =
  29. 29.21 × 8 =
  30. 30.136 ÷ 8 =
  31. 31.30 + 81 =
  32. 32.93 − 63 =
  33. 33.71 − 12 =
  34. 34.5 + ? = 10
  35. 35.222 − 185 =
  36. 36.82 − 9 =
  37. 37.72 + 9 =
  38. 38.72 ÷ 4 =
  39. 39.96 − 66 =
  40. 40.58 × 4 =

Answer key

  1. 676
  2. 42
  3. 68
  4. 400
  5. 67
  6. 93
  7. 103
  8. 8
  9. 102
  10. 1
  11. 44
  12. 144
  13. 625
  14. 85
  15. 25
  16. 15
  17. 38
  18. 6
  19. 8
  20. 29
  21. 17
  22. 45
  23. 40
  24. 31
  25. 60
  26. 81
  27. 49
  28. 128
  29. 168
  30. 17
  31. 111
  32. 30
  33. 59
  34. 5
  35. 37
  36. 73
  37. 81
  38. 18
  39. 30
  40. 232

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