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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 535 · 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 7:05 and reaches the next city at 9:40. How many minutes is the journey?
  2. 2.5% of ₹170 =
  3. 3.65 + 34 =
  4. 4.110 − 67 =
  5. 5.265 ÷ 5 =
  6. 6.29² =
  7. 7.2 + ? = 10
  8. 8.24 + 25 =
  9. 9.39 − 29 =
  10. 10.15² =
  11. 11.You buy a storybook for ₹453 and pay with a ₹500 note. How much change do you get, in rupees?
  12. 12.A cricket match starts at 1:50 and the first innings ends at 5:05. How many minutes did the innings last?
  13. 13.164 ÷ 4 =
  14. 14.17 + 18 =
  15. 15.25% of ₹620 =
  16. 16.Double 81 =
  17. 17.14 + 16 =
  18. 18.Double 61 =
  19. 19.78 + 9 =
  20. 20.16² =
  21. 21.17² =
  22. 22.A film starts at 6:30 and ends at 7:30. How many minutes long is the film?
  23. 23.93 ÷ 3 =
  24. 24.74 + ? = 100
  25. 25.9 + 10 =
  26. 26.91 − 24 =
  27. 27.Best estimate of 91 × 64? (a) 5400 (b) 54000 (c) 540
  28. 28.3 + ? = 10
  29. 29.288 ÷ 9 =
  30. 30.40 + 69 =
  31. 31.22 + 29 =
  32. 32.16 × 3 =
  33. 33.206 − 187 =
  34. 34.29 + 28 =
  35. 35.86 + 6 =
  36. 36.What is the remainder when 21 is divided by 5?
  37. 37.Half of 54 =
  38. 38.123 ÷ 3 =
  39. 39.70 − 48 =
  40. 40.50% of ₹760 =

Answer key

  1. 155
  2. 8.5
  3. 99
  4. 43
  5. 53
  6. 841
  7. 8
  8. 49
  9. 10
  10. 225
  11. 47
  12. 195
  13. 41
  14. 35
  15. 155
  16. 162
  17. 30
  18. 122
  19. 87
  20. 256
  21. 289
  22. 60
  23. 31
  24. 26
  25. 19
  26. 67
  27. 5400
  28. 7
  29. 32
  30. 109
  31. 51
  32. 48
  33. 19
  34. 57
  35. 92
  36. 1
  37. 27
  38. 41
  39. 22
  40. 380

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