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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 655 · 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. 1.69 + 7 =
  2. 2.28 + 27 =
  3. 3.35 + 6 =
  4. 4.Double 87 =
  5. 5.30 + 21 =
  6. 6.84 × 3 =
  7. 7.96 − 35 =
  8. 8.23 + 25 =
  9. 9.296 ÷ 8 =
  10. 10.62 + 45 =
  11. 11.243 ÷ 9 =
  12. 12.518 − 478 =
  13. 13.15 + 8 =
  14. 14.28 × 5 =
  15. 15.You buy a pencil box for ₹443 and pay with a ₹500 note. How much change do you get, in rupees?
  16. 16.Double 31 =
  17. 17.You buy a bag of mangoes for ₹54 and pay with a ₹100 note. How much change do you get, in rupees?
  18. 18.59 − 22 =
  19. 19.55 − 44 =
  20. 20.59 + 9 =
  21. 21.85 + 6 =
  22. 22.21 + 22 =
  23. 23.9 + 8 =
  24. 24.19 + 29 =
  25. 25.79 + 7 =
  26. 26.A train leaves at 2:55 and reaches the next city at 4:15. How many minutes is the journey?
  27. 27.27 + 28 =
  28. 28.6 + 5 =
  29. 29.116 ÷ 4 =
  30. 30.64 − 35 =
  31. 31.24 + 23 =
  32. 32.A train leaves at 4:10 and reaches the next city at 5:15. How many minutes is the journey?
  33. 33.76 − 61 =
  34. 34.36 + 59 =
  35. 35.115 − 77 =
  36. 36.1020 − 983 =
  37. 37.You buy a water bottle for ₹45 and pay with a ₹100 note. How much change do you get, in rupees?
  38. 38.256 ÷ 8 =
  39. 39.46 + 76 =
  40. 40.71 × 6 =

Answer key

  1. 76
  2. 55
  3. 41
  4. 174
  5. 51
  6. 252
  7. 61
  8. 48
  9. 37
  10. 107
  11. 27
  12. 40
  13. 23
  14. 140
  15. 57
  16. 62
  17. 46
  18. 37
  19. 11
  20. 68
  21. 91
  22. 43
  23. 17
  24. 48
  25. 86
  26. 80
  27. 55
  28. 11
  29. 29
  30. 29
  31. 47
  32. 65
  33. 15
  34. 95
  35. 38
  36. 37
  37. 55
  38. 32
  39. 122
  40. 426

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