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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 752 · 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.You buy a storybook for ₹35 and pay with a ₹100 note. How much change do you get, in rupees?
  2. 2.24² =
  3. 3.5% of ₹640 =
  4. 4.95 − 19 =
  5. 5.434 ÷ 7 =
  6. 6.49 + 9 =
  7. 7.25 + 24 =
  8. 8.You buy a box of crayons for ₹246 and pay with a ₹500 note. How much change do you get, in rupees?
  9. 9.91 − 51 =
  10. 10.You buy a bag of mangoes for ₹47 and pay with a ₹100 note. How much change do you get, in rupees?
  11. 11.10% of ₹180 =
  12. 12.416 ÷ 8 =
  13. 13.248 ÷ 8 =
  14. 14.9 + 2 =
  15. 15.15 + 6 =
  16. 16.52 − 41 =
  17. 17.A film starts at 8:05 and ends at 8:45. How many minutes long is the film?
  18. 18.510 ÷ 6 =
  19. 19.52 − 12 =
  20. 20.Double 99 =
  21. 21.7 + 8 =
  22. 22.78 + 4 =
  23. 23.Half of 100 =
  24. 24.1 + ? = 10
  25. 25.77 − 32 =
  26. 26.25% of ₹400 =
  27. 27.46 × 4 =
  28. 28.You start your homework at 5:50 and finish at 7:10. How many minutes did you work?
  29. 29.Best estimate of 773 + 267? (a) 900 (b) 1100 (c) 1300
  30. 30.58 + 47 =
  31. 31.Double 53 =
  32. 32.47 − 19 =
  33. 33.You buy a storybook for ₹56 and pay with a ₹100 note. How much change do you get, in rupees?
  34. 34.27 × 5 =
  35. 35.What is the remainder when 67 is divided by 8?
  36. 36.38 laddoos are packed in boxes of 3. How many laddoos are left over?
  37. 37.5 + ? = 10
  38. 38.220 ÷ 4 =
  39. 39.30 × 4 =
  40. 40.112 ÷ 8 =

Answer key

  1. 65
  2. 576
  3. 32
  4. 76
  5. 62
  6. 58
  7. 49
  8. 254
  9. 40
  10. 53
  11. 18
  12. 52
  13. 31
  14. 11
  15. 21
  16. 11
  17. 40
  18. 85
  19. 40
  20. 198
  21. 15
  22. 82
  23. 50
  24. 9
  25. 45
  26. 100
  27. 184
  28. 80
  29. 1100
  30. 105
  31. 106
  32. 28
  33. 44
  34. 135
  35. 3
  36. 2
  37. 5
  38. 55
  39. 120
  40. 14

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