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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 758 · 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. 1.288 ÷ 8 =
  2. 2.33 + 71 =
  3. 3.55 + 18 =
  4. 4.61 children stand in rows of 9. How many full rows can they make?
  5. 5.46 + 74 =
  6. 6.13 + 19 =
  7. 7.18² =
  8. 8.38 − 9 =
  9. 9.8 + 10 =
  10. 10.69 + 9 =
  11. 11.56 ÷ 4 =
  12. 12.A film starts at 2:05 and ends at 2:45. How many minutes long is the film?
  13. 13.You buy a storybook for ₹361 and pay with a ₹500 note. How much change do you get, in rupees?
  14. 14.Half of 48 =
  15. 15.14 × 8 =
  16. 16.200 ÷ 8 =
  17. 17.21² =
  18. 18.672 ÷ 7 =
  19. 19.Half of 114 =
  20. 20.23 + 73 =
  21. 21.59 × 4 =
  22. 22.4 + ? = 10
  23. 23.A film starts at 8:35 and ends at 10:35. How many minutes long is the film?
  24. 24.What is the remainder when 75 is divided by 8?
  25. 25.7 + 8 =
  26. 26.50% of ₹670 =
  27. 27.59 + 19 =
  28. 28.90 − 53 =
  29. 29.75 + 37 =
  30. 30.186 ÷ 6 =
  31. 31.11² =
  32. 32.Best estimate of 32 × 16? (a) 600 (b) 60 (c) 6000
  33. 33.594 ÷ 6 =
  34. 34.231 ÷ 3 =
  35. 35.51 × 4 =
  36. 36.46 + 29 =
  37. 37.A train leaves at 2:00 and reaches the next city at 2:45. How many minutes is the journey?
  38. 38.45 × 9 =
  39. 39.297 ÷ 3 =
  40. 40.40 + 29 =

Answer key

  1. 36
  2. 104
  3. 73
  4. 6
  5. 120
  6. 32
  7. 324
  8. 29
  9. 18
  10. 78
  11. 14
  12. 40
  13. 139
  14. 24
  15. 112
  16. 25
  17. 441
  18. 96
  19. 57
  20. 96
  21. 236
  22. 6
  23. 120
  24. 3
  25. 15
  26. 335
  27. 78
  28. 37
  29. 112
  30. 31
  31. 121
  32. 600
  33. 99
  34. 77
  35. 204
  36. 75
  37. 45
  38. 405
  39. 99
  40. 69

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