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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 598 · 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. 1.26 × 3 =
  2. 2.56 − 46 =
  3. 3.You buy a cricket ball for ₹22 and pay with a ₹100 note. How much change do you get, in rupees?
  4. 4.92 ÷ 4 =
  5. 5.160 ÷ 8 =
  6. 6.7 + 9 =
  7. 7.10% of ₹50 =
  8. 8.72 − 62 =
  9. 9.28² =
  10. 10.Half of 176 =
  11. 11.240 ÷ 4 =
  12. 12.13 + 12 =
  13. 13.35 + 7 =
  14. 14.32 × 8 =
  15. 15.324 − 292 =
  16. 16.You start your homework at 6:05 and finish at 8:40. How many minutes did you work?
  17. 17.37 + 84 =
  18. 18.25 + 38 =
  19. 19.Half of 184 =
  20. 20.528 − 99 =
  21. 21.You start your homework at 6:00 and finish at 7:05. How many minutes did you work?
  22. 22.90 − 78 =
  23. 23.What is the remainder when 101 is divided by 9?
  24. 24.Half of 72 =
  25. 25.26² =
  26. 26.24² =
  27. 27.Half of 56 =
  28. 28.515 − 492 =
  29. 29.98 − 29 =
  30. 30.23 + ? = 100
  31. 31.29² =
  32. 32.A cricket match starts at 5:10 and the first innings ends at 5:40. How many minutes did the innings last?
  33. 33.46 × 4 =
  34. 34.72 − 41 =
  35. 35.12 + 13 =
  36. 36.62 − 48 =
  37. 37.What is the remainder when 26 is divided by 6?
  38. 38.28 × 4 =
  39. 39.329 − 291 =
  40. 40.57 × 4 =

Answer key

  1. 78
  2. 10
  3. 78
  4. 23
  5. 20
  6. 16
  7. 5
  8. 10
  9. 784
  10. 88
  11. 60
  12. 25
  13. 42
  14. 256
  15. 32
  16. 155
  17. 121
  18. 63
  19. 92
  20. 429
  21. 65
  22. 12
  23. 2
  24. 36
  25. 676
  26. 576
  27. 28
  28. 23
  29. 69
  30. 77
  31. 841
  32. 30
  33. 184
  34. 31
  35. 25
  36. 14
  37. 2
  38. 112
  39. 38
  40. 228

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