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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 456 · 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.Double 39 =
  2. 2.A cricket match starts at 7:45 and the first innings ends at 8:55. How many minutes did the innings last?
  3. 3.42 + ? = 100
  4. 4.27 + 8 =
  5. 5.27² =
  6. 6.108 − 55 =
  7. 7.77 − 24 =
  8. 8.You buy a cricket ball for ₹202 and pay with a ₹500 note. How much change do you get, in rupees?
  9. 9.46 + ? = 100
  10. 10.82 − 13 =
  11. 11.88 ÷ 8 =
  12. 12.27 + ? = 100
  13. 13.52 ÷ 4 =
  14. 14.What is the remainder when 55 is divided by 8?
  15. 15.18 × 8 =
  16. 16.71 + 29 =
  17. 17.2 + ? = 10
  18. 18.55 + 8 =
  19. 19.12 + ? = 100
  20. 20.Double 61 =
  21. 21.124 ÷ 4 =
  22. 22.480 ÷ 5 =
  23. 23.702 ÷ 9 =
  24. 24.519 − 491 =
  25. 25.12 + 11 =
  26. 26.19 + 3 =
  27. 27.686 ÷ 7 =
  28. 28.90 ÷ 5 =
  29. 29.Best estimate of 451 + 792? (a) 1100 (b) 1300 (c) 1500
  30. 30.15 + 14 =
  31. 31.86 + 8 =
  32. 32.19 + 21 =
  33. 33.69 − 9 =
  34. 34.41 + 53 =
  35. 35.45 + 9 =
  36. 36.69 + 65 =
  37. 37.You buy a pencil box for ₹213 and pay with a ₹500 note. How much change do you get, in rupees?
  38. 38.1021 − 984 =
  39. 39.24 × 5 =
  40. 40.5% of ₹40 =

Answer key

  1. 78
  2. 70
  3. 58
  4. 35
  5. 729
  6. 53
  7. 53
  8. 298
  9. 54
  10. 69
  11. 11
  12. 73
  13. 13
  14. 7
  15. 144
  16. 100
  17. 8
  18. 63
  19. 88
  20. 122
  21. 31
  22. 96
  23. 78
  24. 28
  25. 23
  26. 22
  27. 98
  28. 18
  29. 1300
  30. 29
  31. 94
  32. 40
  33. 60
  34. 94
  35. 54
  36. 134
  37. 287
  38. 37
  39. 120
  40. 2

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