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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 396 · 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.A train leaves at 7:55 and reaches the next city at 9:35. How many minutes is the journey?
  2. 2.89 + 6 =
  3. 3.6 + 7 =
  4. 4.71 × 4 =
  5. 5.Half of 100 =
  6. 6.52 + 19 =
  7. 7.Double 55 =
  8. 8.64 × 5 =
  9. 9.14 + 15 =
  10. 10.184 ÷ 8 =
  11. 11.A cricket match starts at 2:05 and the first innings ends at 5:00. How many minutes did the innings last?
  12. 12.7 + 6 =
  13. 13.90 − 15 =
  14. 14.218 − 176 =
  15. 15.You buy a notebook for ₹22 and a pen for ₹37. You pay with a ₹100 note. How much change do you get, in rupees?
  16. 16.75 + 7 =
  17. 17.82 − 9 =
  18. 18.51 + 9 =
  19. 19.99 − 29 =
  20. 20.19 × 6 =
  21. 21.205 − 190 =
  22. 22.136 ÷ 8 =
  23. 23.50% of ₹660 =
  24. 24.71 − 31 =
  25. 25.23 × 8 =
  26. 26.10% of ₹120 =
  27. 27.7 + 9 =
  28. 28.728 ÷ 8 =
  29. 29.32 + 14 =
  30. 30.216 ÷ 4 =
  31. 31.9 + 6 =
  32. 32.95 − 71 =
  33. 33.60 + 9 =
  34. 34.27 + 9 =
  35. 35.123 − 85 =
  36. 36.12 × 8 =
  37. 37.27² =
  38. 38.99 × 8 =
  39. 39.10% of ₹880 =
  40. 40.8 + 7 =

Answer key

  1. 100
  2. 95
  3. 13
  4. 284
  5. 50
  6. 71
  7. 110
  8. 320
  9. 29
  10. 23
  11. 175
  12. 13
  13. 75
  14. 42
  15. 41
  16. 82
  17. 73
  18. 60
  19. 70
  20. 114
  21. 15
  22. 17
  23. 330
  24. 40
  25. 184
  26. 12
  27. 16
  28. 91
  29. 46
  30. 54
  31. 15
  32. 24
  33. 69
  34. 36
  35. 38
  36. 96
  37. 729
  38. 792
  39. 88
  40. 15

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