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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 118 · 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. 1.76 ÷ 4 =
  2. 2.Half of 116 =
  3. 3.You start your homework at 2:40 and finish at 4:40. How many minutes did you work?
  4. 4.17 + 8 =
  5. 5.33 − 29 =
  6. 6.92 − 59 =
  7. 7.50% of ₹380 =
  8. 8.You buy a storybook for ₹28 and a pen for ₹40. You pay with a ₹100 note. How much change do you get, in rupees?
  9. 9.98 − 43 =
  10. 10.Best estimate of 536 + 234? (a) 900 (b) 500 (c) 700
  11. 11.28 + 9 =
  12. 12.26² =
  13. 13.78 − 19 =
  14. 14.25² =
  15. 15.43 + 72 =
  16. 16.26 + ? = 100
  17. 17.29 + 28 =
  18. 18.168 ÷ 8 =
  19. 19.64 − 25 =
  20. 20.330 ÷ 5 =
  21. 21.132 ÷ 4 =
  22. 22.Best estimate of 47 × 16? (a) 1000 (b) 100 (c) 10000
  23. 23.24 × 4 =
  24. 24.What is the remainder when 86 is divided by 7?
  25. 25.Half of 88 =
  26. 26.Half of 182 =
  27. 27.456 ÷ 6 =
  28. 28.10% of ₹590 =
  29. 29.5% of ₹690 =
  30. 30.128 − 96 =
  31. 31.15² =
  32. 32.25% of ₹610 =
  33. 33.528 ÷ 8 =
  34. 34.46 + 29 =
  35. 35.13 + 14 =
  36. 36.26 + 9 =
  37. 37.Double 64 =
  38. 38.504 ÷ 8 =
  39. 39.Double 62 =
  40. 40.25% of ₹240 =

Answer key

  1. 19
  2. 58
  3. 120
  4. 25
  5. 4
  6. 33
  7. 190
  8. 32
  9. 55
  10. 700
  11. 37
  12. 676
  13. 59
  14. 625
  15. 115
  16. 74
  17. 57
  18. 21
  19. 39
  20. 66
  21. 33
  22. 1000
  23. 96
  24. 2
  25. 44
  26. 91
  27. 76
  28. 59
  29. 34.5
  30. 32
  31. 225
  32. 152.5
  33. 66
  34. 75
  35. 27
  36. 35
  37. 128
  38. 63
  39. 124
  40. 60

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