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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 820 · 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. 1.523 − 498 =
  2. 2.10% of ₹210 =
  3. 3.You start your homework at 4:00 and finish at 4:25. How many minutes did you work?
  4. 4.156 ÷ 4 =
  5. 5.76 × 7 =
  6. 6.62 + 19 =
  7. 7.5% of ₹690 =
  8. 8.23 × 8 =
  9. 9.19 + 29 =
  10. 10.27 + 28 =
  11. 11.55 + 7 =
  12. 12.18 + 17 =
  13. 13.19 + 18 =
  14. 14.9 + 11 =
  15. 15.25% of ₹770 =
  16. 16.50% of ₹830 =
  17. 17.97 × 6 =
  18. 18.99 − 57 =
  19. 19.4 + ? = 10
  20. 20.87 × 6 =
  21. 21.8 + 5 =
  22. 22.29 − 9 =
  23. 23.50% of ₹370 =
  24. 24.25 × 8 =
  25. 25.12 − 9 =
  26. 26.24 + 69 =
  27. 27.11² =
  28. 28.7 + ? = 10
  29. 29.66 + 5 =
  30. 30.Double 75 =
  31. 31.24 + 82 =
  32. 32.57 − 9 =
  33. 33.A film starts at 4:20 and ends at 5:10. How many minutes long is the film?
  34. 34.A cricket match starts at 1:50 and the first innings ends at 2:40. How many minutes did the innings last?
  35. 35.15 × 8 =
  36. 36.You buy a box of crayons for ₹71 and pay with a ₹100 note. How much change do you get, in rupees?
  37. 37.508 − 489 =
  38. 38.87 − 57 =
  39. 39.A film starts at 6:45 and ends at 8:35. How many minutes long is the film?
  40. 40.25² =

Answer key

  1. 25
  2. 21
  3. 25
  4. 39
  5. 532
  6. 81
  7. 34.5
  8. 184
  9. 48
  10. 55
  11. 62
  12. 35
  13. 37
  14. 20
  15. 192.5
  16. 415
  17. 582
  18. 42
  19. 6
  20. 522
  21. 13
  22. 20
  23. 185
  24. 200
  25. 3
  26. 93
  27. 121
  28. 3
  29. 71
  30. 150
  31. 106
  32. 48
  33. 50
  34. 50
  35. 120
  36. 29
  37. 19
  38. 30
  39. 110
  40. 625

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