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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 512 · 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. 1.56 + 56 =
  2. 2.541 + 99 =
  3. 3.You buy a bag of mangoes for ₹44 and pay with a ₹100 note. How much change do you get, in rupees?
  4. 4.71 − 41 =
  5. 5.57 − 44 =
  6. 6.22 + 23 =
  7. 7.63 + 58 =
  8. 8.212 ÷ 4 =
  9. 9.76 + 6 =
  10. 10.You buy a storybook for ₹49 and pay with a ₹100 note. How much change do you get, in rupees?
  11. 11.Half of 198 =
  12. 12.62 − 19 =
  13. 13.378 ÷ 6 =
  14. 14.68 + 7 =
  15. 15.140 ÷ 5 =
  16. 16.111 − 75 =
  17. 17.19 × 8 =
  18. 18.Double 26 =
  19. 19.74 − 19 =
  20. 20.5% of ₹530 =
  21. 21.20 + 19 =
  22. 22.A cricket match starts at 2:50 and the first innings ends at 5:30. How many minutes did the innings last?
  23. 23.5% of ₹160 =
  24. 24.A film starts at 5:00 and ends at 6:45. How many minutes long is the film?
  25. 25.306 ÷ 9 =
  26. 26.What is the remainder when 61 is divided by 6?
  27. 27.What is the remainder when 71 is divided by 9?
  28. 28.Double 55 =
  29. 29.72 + ? = 100
  30. 30.29 + 30 =
  31. 31.65 + 83 =
  32. 32.22 + 24 =
  33. 33.A cricket match starts at 8:55 and the first innings ends at 9:30. How many minutes did the innings last?
  34. 34.40 × 8 =
  35. 35.65 × 4 =
  36. 36.19 + 18 =
  37. 37.You start your homework at 7:15 and finish at 9:00. How many minutes did you work?
  38. 38.71 + 29 =
  39. 39.94 − 79 =
  40. 40.112 − 85 =

Answer key

  1. 112
  2. 640
  3. 56
  4. 30
  5. 13
  6. 45
  7. 121
  8. 53
  9. 82
  10. 51
  11. 99
  12. 43
  13. 63
  14. 75
  15. 28
  16. 36
  17. 152
  18. 52
  19. 55
  20. 26.5
  21. 39
  22. 160
  23. 8
  24. 105
  25. 34
  26. 1
  27. 8
  28. 110
  29. 28
  30. 59
  31. 148
  32. 46
  33. 35
  34. 320
  35. 260
  36. 37
  37. 105
  38. 100
  39. 15
  40. 27

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