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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 408 · 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. 1.24 × 8 =
  2. 2.70 + 35 =
  3. 3.19² =
  4. 4.7 + ? = 10
  5. 5.79 laddoos are packed in boxes of 6. How many laddoos are left over?
  6. 6.16 × 8 =
  7. 7.10% of ₹530 =
  8. 8.5% of ₹740 =
  9. 9.67 + 19 =
  10. 10.45 + 9 =
  11. 11.27 + 29 =
  12. 12.53 − 41 =
  13. 13.245 ÷ 5 =
  14. 14.55 × 4 =
  15. 15.38 + 3 =
  16. 16.Double 36 =
  17. 17.40 × 8 =
  18. 18.47 + 12 =
  19. 19.You buy a box of crayons for ₹59 and pay with a ₹100 note. How much change do you get, in rupees?
  20. 20.You buy a notebook for ₹437 and pay with a ₹500 note. How much change do you get, in rupees?
  21. 21.31 × 3 =
  22. 22.22 × 8 =
  23. 23.A train leaves at 6:05 and reaches the next city at 9:15. How many minutes is the journey?
  24. 24.78 × 9 =
  25. 25.15 + 9 =
  26. 26.29 + 8 =
  27. 27.83 − 54 =
  28. 28.98 − 19 =
  29. 29.25² =
  30. 30.4 + ? = 10
  31. 31.48 + 19 =
  32. 32.256 ÷ 8 =
  33. 33.A film starts at 4:50 and ends at 6:20. How many minutes long is the film?
  34. 34.10% of ₹730 =
  35. 35.68 × 5 =
  36. 36.124 ÷ 4 =
  37. 37.64 ÷ 4 =
  38. 38.71 × 4 =
  39. 39.50% of ₹200 =
  40. 40.232 ÷ 4 =

Answer key

  1. 192
  2. 105
  3. 361
  4. 3
  5. 1
  6. 128
  7. 53
  8. 37
  9. 86
  10. 54
  11. 56
  12. 12
  13. 49
  14. 220
  15. 41
  16. 72
  17. 320
  18. 59
  19. 41
  20. 63
  21. 93
  22. 176
  23. 190
  24. 702
  25. 24
  26. 37
  27. 29
  28. 79
  29. 625
  30. 6
  31. 67
  32. 32
  33. 90
  34. 73
  35. 340
  36. 31
  37. 16
  38. 284
  39. 100
  40. 58

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