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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 717 · 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. 1.44 × 7 =
  2. 2.45 + 6 =
  3. 3.120 ÷ 8 =
  4. 4.98 − 26 =
  5. 5.20 − 9 =
  6. 6.83 − 21 =
  7. 7.23 + 24 =
  8. 8.288 ÷ 8 =
  9. 9.20 + ? = 100
  10. 10.10 + 9 =
  11. 11.20 + 21 =
  12. 12.22 + 19 =
  13. 13.25² =
  14. 14.You buy a cricket ball for ₹462 and pay with a ₹500 note. How much change do you get, in rupees?
  15. 15.761 − 99 =
  16. 16.95 × 9 =
  17. 17.294 + 99 =
  18. 18.21² =
  19. 19.71 × 6 =
  20. 20.28² =
  21. 21.6 + 7 =
  22. 22.Half of 76 =
  23. 23.1011 − 997 =
  24. 24.25 + 8 =
  25. 25.72 ÷ 4 =
  26. 26.19 × 8 =
  27. 27.25% of ₹760 =
  28. 28.24 × 4 =
  29. 29.9 + ? = 10
  30. 30.78 + 26 =
  31. 31.48 + 65 =
  32. 32.249 ÷ 3 =
  33. 33.A train leaves at 4:40 and reaches the next city at 6:15. How many minutes is the journey?
  34. 34.46 − 9 =
  35. 35.81 − 41 =
  36. 36.116 ÷ 4 =
  37. 37.216 ÷ 4 =
  38. 38.846 ÷ 9 =
  39. 39.Best estimate of 659 + 475? (a) 1400 (b) 1000 (c) 1200
  40. 40.You buy a cricket ball for ₹303 and pay with a ₹500 note. How much change do you get, in rupees?

Answer key

  1. 308
  2. 51
  3. 15
  4. 72
  5. 11
  6. 62
  7. 47
  8. 36
  9. 80
  10. 19
  11. 41
  12. 41
  13. 625
  14. 38
  15. 662
  16. 855
  17. 393
  18. 441
  19. 426
  20. 784
  21. 13
  22. 38
  23. 14
  24. 33
  25. 18
  26. 152
  27. 190
  28. 96
  29. 1
  30. 104
  31. 113
  32. 83
  33. 95
  34. 37
  35. 40
  36. 29
  37. 54
  38. 94
  39. 1200
  40. 197

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