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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 990 · 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. 1.19² =
  2. 2.69 − 34 =
  3. 3.120 ÷ 8 =
  4. 4.89 + 84 =
  5. 5.78 + 6 =
  6. 6.21 + 22 =
  7. 7.Double 79 =
  8. 8.16 + 17 =
  9. 9.44 children stand in rows of 6. How many full rows can they make?
  10. 10.89 + 88 =
  11. 11.25% of ₹900 =
  12. 12.Best estimate of 84 × 66? (a) 5600 (b) 560 (c) 56000
  13. 13.8 + 7 =
  14. 14.You buy a water bottle for ₹46 and pay with a ₹100 note. How much change do you get, in rupees?
  15. 15.37 × 4 =
  16. 16.75 + 12 =
  17. 17.10% of ₹720 =
  18. 18.What is the remainder when 31 is divided by 5?
  19. 19.296 ÷ 8 =
  20. 20.Double 89 =
  21. 21.Half of 164 =
  22. 22.110 ÷ 5 =
  23. 23.5% of ₹520 =
  24. 24.114 − 94 =
  25. 25.39 × 8 =
  26. 26.Double 98 =
  27. 27.29 + 4 =
  28. 28.You start your homework at 2:10 and finish at 4:45. How many minutes did you work?
  29. 29.15 × 4 =
  30. 30.88 + 76 =
  31. 31.50% of ₹660 =
  32. 32.282 ÷ 3 =
  33. 33.31 − 19 =
  34. 34.Half of 60 =
  35. 35.256 + 99 =
  36. 36.27² =
  37. 37.312 ÷ 8 =
  38. 38.9 + 8 =
  39. 39.22 + 19 =
  40. 40.What is the remainder when 43 is divided by 5?

Answer key

  1. 361
  2. 35
  3. 15
  4. 173
  5. 84
  6. 43
  7. 158
  8. 33
  9. 7
  10. 177
  11. 225
  12. 5600
  13. 15
  14. 54
  15. 148
  16. 87
  17. 72
  18. 1
  19. 37
  20. 178
  21. 82
  22. 22
  23. 26
  24. 20
  25. 312
  26. 196
  27. 33
  28. 155
  29. 60
  30. 164
  31. 330
  32. 94
  33. 12
  34. 30
  35. 355
  36. 729
  37. 39
  38. 17
  39. 41
  40. 3

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