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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 692 · 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. 1.18² =
  2. 2.19 + 21 =
  3. 3.76 + 6 =
  4. 4.66 − 41 =
  5. 5.48 + 5 =
  6. 6.62 + ? = 100
  7. 7.23 + 34 =
  8. 8.99 − 73 =
  9. 9.75 + 7 =
  10. 10.62 − 29 =
  11. 11.87 + ? = 100
  12. 12.89 + 4 =
  13. 13.17 × 4 =
  14. 14.What is the remainder when 139 is divided by 9?
  15. 15.87 + 7 =
  16. 16.A film starts at 7:35 and ends at 8:45. How many minutes long is the film?
  17. 17.54 − 42 =
  18. 18.41 + 56 =
  19. 19.16² =
  20. 20.6 + ? = 10
  21. 21.What is the remainder when 22 is divided by 5?
  22. 22.28 + 27 =
  23. 23.You start your homework at 1:10 and finish at 3:05. How many minutes did you work?
  24. 24.136 ÷ 4 =
  25. 25.6 + 8 =
  26. 26.57 + 8 =
  27. 27.29 × 9 =
  28. 28.304 ÷ 8 =
  29. 29.15 + 8 =
  30. 30.81 + 29 =
  31. 31.162 ÷ 3 =
  32. 32.42 children stand in rows of 5. How many full rows can they make?
  33. 33.5% of ₹690 =
  34. 34.A film starts at 1:55 and ends at 3:05. How many minutes long is the film?
  35. 35.65 + 6 =
  36. 36.19 × 8 =
  37. 37.52 children stand in rows of 9. How many full rows can they make?
  38. 38.9 + 6 =
  39. 39.28 + 29 =
  40. 40.17 × 5 =

Answer key

  1. 324
  2. 40
  3. 82
  4. 25
  5. 53
  6. 38
  7. 57
  8. 26
  9. 82
  10. 33
  11. 13
  12. 93
  13. 68
  14. 4
  15. 94
  16. 70
  17. 12
  18. 97
  19. 256
  20. 4
  21. 2
  22. 55
  23. 115
  24. 34
  25. 14
  26. 65
  27. 261
  28. 38
  29. 23
  30. 110
  31. 54
  32. 8
  33. 34.5
  34. 70
  35. 71
  36. 152
  37. 5
  38. 15
  39. 57
  40. 85

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