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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 936 · 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. 1.14 × 6 =
  2. 2.85 × 4 =
  3. 3.80 − 37 =
  4. 4.What is the remainder when 21 is divided by 4?
  5. 5.8 + 7 =
  6. 6.78 − 13 =
  7. 7.48 + 82 =
  8. 8.Best estimate of 252 + 773? (a) 900 (b) 1100 (c) 1300
  9. 9.Best estimate of 88 × 17? (a) 1800 (b) 18000 (c) 180
  10. 10.89 + ? = 100
  11. 11.296 ÷ 8 =
  12. 12.50% of ₹840 =
  13. 13.48 + 9 =
  14. 14.108 − 95 =
  15. 15.Half of 74 =
  16. 16.What is the remainder when 56 is divided by 5?
  17. 17.87 + 6 =
  18. 18.225 − 186 =
  19. 19.25 + 8 =
  20. 20.13 + 12 =
  21. 21.51 × 4 =
  22. 22.58 − 29 =
  23. 23.Double 27 =
  24. 24.103 − 61 =
  25. 25.Best estimate of 531 + 585? (a) 900 (b) 1100 (c) 1300
  26. 26.23 + 19 =
  27. 27.80 − 43 =
  28. 28.98 × 6 =
  29. 29.77 − 41 =
  30. 30.1 + ? = 10
  31. 31.200 ÷ 4 =
  32. 32.A train leaves at 8:35 and reaches the next city at 9:10. How many minutes is the journey?
  33. 33.40 + 86 =
  34. 34.272 ÷ 4 =
  35. 35.10% of ₹360 =
  36. 36.31 + 29 =
  37. 37.33 × 8 =
  38. 38.32 × 8 =
  39. 39.126 ÷ 6 =
  40. 40.128 ÷ 4 =

Answer key

  1. 84
  2. 340
  3. 43
  4. 1
  5. 15
  6. 65
  7. 130
  8. 1100
  9. 1800
  10. 11
  11. 37
  12. 420
  13. 57
  14. 13
  15. 37
  16. 1
  17. 93
  18. 39
  19. 33
  20. 25
  21. 204
  22. 29
  23. 54
  24. 42
  25. 1100
  26. 42
  27. 37
  28. 588
  29. 36
  30. 9
  31. 50
  32. 35
  33. 126
  34. 68
  35. 36
  36. 60
  37. 264
  38. 256
  39. 21
  40. 32

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