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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 633 · 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. 1.64 ÷ 4 =
  2. 2.55 + 29 =
  3. 3.58 − 15 =
  4. 4.69 + 55 =
  5. 5.80 + 24 =
  6. 6.256 ÷ 8 =
  7. 7.57 × 7 =
  8. 8.A train leaves at 1:30 and reaches the next city at 3:30. How many minutes is the journey?
  9. 9.303 − 280 =
  10. 10.12 × 5 =
  11. 11.15 × 8 =
  12. 12.39 × 3 =
  13. 13.Half of 168 =
  14. 14.17 + 19 =
  15. 15.66 + ? = 100
  16. 16.64 + 55 =
  17. 17.1 + ? = 10
  18. 18.You buy a box of crayons for ₹12 and pay with a ₹100 note. How much change do you get, in rupees?
  19. 19.59 + 2 =
  20. 20.23 + 24 =
  21. 21.74 − 19 =
  22. 22.95 − 61 =
  23. 23.99 − 41 =
  24. 24.8 + 10 =
  25. 25.38 + 29 =
  26. 26.31 × 9 =
  27. 27.51 laddoos are packed in boxes of 5. How many laddoos are left over?
  28. 28.211 − 192 =
  29. 29.81 + 54 =
  30. 30.You buy a storybook for ₹234 and pay with a ₹500 note. How much change do you get, in rupees?
  31. 31.69 − 52 =
  32. 32.Half of 198 =
  33. 33.27 + 28 =
  34. 34.42 × 4 =
  35. 35.57 + 9 =
  36. 36.575 + 99 =
  37. 37.9 + 11 =
  38. 38.Double 37 =
  39. 39.82 + 59 =
  40. 40.A train leaves at 7:20 and reaches the next city at 10:00. How many minutes is the journey?

Answer key

  1. 16
  2. 84
  3. 43
  4. 124
  5. 104
  6. 32
  7. 399
  8. 120
  9. 23
  10. 60
  11. 120
  12. 117
  13. 84
  14. 36
  15. 34
  16. 119
  17. 9
  18. 88
  19. 61
  20. 47
  21. 55
  22. 34
  23. 58
  24. 18
  25. 67
  26. 279
  27. 1
  28. 19
  29. 135
  30. 266
  31. 17
  32. 99
  33. 55
  34. 168
  35. 66
  36. 674
  37. 20
  38. 74
  39. 141
  40. 160

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