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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 730 · 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.Best estimate of 871 + 666? (a) 1800 (b) 1400 (c) 1600
  2. 2.25 + 9 =
  3. 3.168 ÷ 4 =
  4. 4.15² =
  5. 5.5% of ₹460 =
  6. 6.17² =
  7. 7.301 − 277 =
  8. 8.24² =
  9. 9.34 + ? = 100
  10. 10.245 ÷ 5 =
  11. 11.A train leaves at 3:15 and reaches the next city at 6:30. How many minutes is the journey?
  12. 12.69 − 46 =
  13. 13.50% of ₹280 =
  14. 14.11 + 13 =
  15. 15.61 + 23 =
  16. 16.12 + 11 =
  17. 17.A train leaves at 1:50 and reaches the next city at 4:20. How many minutes is the journey?
  18. 18.7 + 9 =
  19. 19.5 + ? = 10
  20. 20.66 + 24 =
  21. 21.Double 21 =
  22. 22.18² =
  23. 23.111 ÷ 3 =
  24. 24.12 + 14 =
  25. 25.21 + 20 =
  26. 26.A train leaves at 3:35 and reaches the next city at 6:30. How many minutes is the journey?
  27. 27.1 + ? = 10
  28. 28.15 + 7 =
  29. 29.2 + ? = 10
  30. 30.12 × 8 =
  31. 31.98 × 4 =
  32. 32.Half of 184 =
  33. 33.61 − 35 =
  34. 34.21 − 9 =
  35. 35.16 + 19 =
  36. 36.Best estimate of 83 × 12? (a) 800 (b) 80 (c) 8000
  37. 37.84 × 4 =
  38. 38.50% of ₹190 =
  39. 39.92 ÷ 4 =
  40. 40.You buy a pencil box for ₹19 and pay with a ₹100 note. How much change do you get, in rupees?

Answer key

  1. 1600
  2. 34
  3. 42
  4. 225
  5. 23
  6. 289
  7. 24
  8. 576
  9. 66
  10. 49
  11. 195
  12. 23
  13. 140
  14. 24
  15. 84
  16. 23
  17. 150
  18. 16
  19. 5
  20. 90
  21. 42
  22. 324
  23. 37
  24. 26
  25. 41
  26. 175
  27. 9
  28. 22
  29. 8
  30. 96
  31. 392
  32. 92
  33. 26
  34. 12
  35. 35
  36. 800
  37. 336
  38. 95
  39. 23
  40. 81

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