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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 853 · 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. 1.127 − 89 =
  2. 2.11 + 13 =
  3. 3.16 + 18 =
  4. 4.76 + 5 =
  5. 5.110 ÷ 5 =
  6. 6.Best estimate of 446 + 426? (a) 800 (b) 600 (c) 1000
  7. 7.56 − 15 =
  8. 8.38 × 8 =
  9. 9.11 + 12 =
  10. 10.You buy a pencil box for ₹152 and pay with a ₹500 note. How much change do you get, in rupees?
  11. 11.318 + 99 =
  12. 12.232 ÷ 8 =
  13. 13.A cricket match starts at 4:05 and the first innings ends at 4:30. How many minutes did the innings last?
  14. 14.Double 94 =
  15. 15.5 + ? = 10
  16. 16.You start your homework at 8:05 and finish at 11:15. How many minutes did you work?
  17. 17.You buy a water bottle for ₹83 and pay with a ₹100 note. How much change do you get, in rupees?
  18. 18.Half of 30 =
  19. 19.28 × 4 =
  20. 20.18² =
  21. 21.117 ÷ 3 =
  22. 22.28 + 4 =
  23. 23.408 ÷ 8 =
  24. 24.21² =
  25. 25.558 ÷ 6 =
  26. 26.16 + 17 =
  27. 27.What is the remainder when 41 is divided by 9?
  28. 28.76 − 24 =
  29. 29.25 + 9 =
  30. 30.42 × 4 =
  31. 31.512 − 99 =
  32. 32.32 + 14 =
  33. 33.52 × 4 =
  34. 34.62 − 38 =
  35. 35.50% of ₹60 =
  36. 36.28 + ? = 100
  37. 37.89 + 9 =
  38. 38.49 + ? = 100
  39. 39.31 × 8 =
  40. 40.506 − 498 =

Answer key

  1. 38
  2. 24
  3. 34
  4. 81
  5. 22
  6. 800
  7. 41
  8. 304
  9. 23
  10. 348
  11. 417
  12. 29
  13. 25
  14. 188
  15. 5
  16. 190
  17. 17
  18. 15
  19. 112
  20. 324
  21. 39
  22. 32
  23. 51
  24. 441
  25. 93
  26. 33
  27. 5
  28. 52
  29. 34
  30. 168
  31. 413
  32. 46
  33. 208
  34. 24
  35. 30
  36. 72
  37. 98
  38. 51
  39. 248
  40. 8

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