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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 474 · 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. 1.88 − 27 =
  2. 2.13 + 14 =
  3. 3.75 − 28 =
  4. 4.7 + 6 =
  5. 5.263 + 99 =
  6. 6.A film starts at 5:40 and ends at 6:50. How many minutes long is the film?
  7. 7.21 + 23 =
  8. 8.52 ÷ 4 =
  9. 9.18² =
  10. 10.30 + ? = 100
  11. 11.425 ÷ 5 =
  12. 12.6 + 8 =
  13. 13.21² =
  14. 14.12 + 11 =
  15. 15.5% of ₹160 =
  16. 16.30 + 32 =
  17. 17.80 − 59 =
  18. 18.14 × 8 =
  19. 19.35 laddoos are packed in boxes of 4. How many laddoos are left over?
  20. 20.A train leaves at 5:50 and reaches the next city at 8:15. How many minutes is the journey?
  21. 21.Double 57 =
  22. 22.62 − 40 =
  23. 23.57 × 5 =
  24. 24.192 ÷ 8 =
  25. 25.41 × 9 =
  26. 26.37 + 4 =
  27. 27.Double 84 =
  28. 28.101 children stand in rows of 7. How many full rows can they make?
  29. 29.11 + ? = 100
  30. 30.73 − 27 =
  31. 31.65 + 66 =
  32. 32.136 ÷ 8 =
  33. 33.10% of ₹760 =
  34. 34.546 ÷ 6 =
  35. 35.32 × 8 =
  36. 36.57 − 16 =
  37. 37.51 × 3 =
  38. 38.616 ÷ 8 =
  39. 39.81 − 62 =
  40. 40.103 − 97 =

Answer key

  1. 61
  2. 27
  3. 47
  4. 13
  5. 362
  6. 70
  7. 44
  8. 13
  9. 324
  10. 70
  11. 85
  12. 14
  13. 441
  14. 23
  15. 8
  16. 62
  17. 21
  18. 112
  19. 3
  20. 145
  21. 114
  22. 22
  23. 285
  24. 24
  25. 369
  26. 41
  27. 168
  28. 14
  29. 89
  30. 46
  31. 131
  32. 17
  33. 76
  34. 91
  35. 256
  36. 41
  37. 153
  38. 77
  39. 19
  40. 6

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