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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 143 · 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. 1.1002 − 990 =
  2. 2.11 + ? = 100
  3. 3.50% of ₹490 =
  4. 4.36 + 6 =
  5. 5.63 − 35 =
  6. 6.66 × 5 =
  7. 7.74 − 29 =
  8. 8.22 + 21 =
  9. 9.19 + 2 =
  10. 10.6 + ? = 10
  11. 11.144 ÷ 4 =
  12. 12.10% of ₹770 =
  13. 13.19 × 4 =
  14. 14.Half of 92 =
  15. 15.25% of ₹710 =
  16. 16.5% of ₹390 =
  17. 17.332 ÷ 4 =
  18. 18.81 − 54 =
  19. 19.200 ÷ 4 =
  20. 20.45 + 16 =
  21. 21.What is the remainder when 46 is divided by 8?
  22. 22.25% of ₹570 =
  23. 23.25% of ₹170 =
  24. 24.A train leaves at 1:00 and reaches the next city at 1:50. How many minutes is the journey?
  25. 25.63 + 65 =
  26. 26.Best estimate of 771 + 432? (a) 1400 (b) 1200 (c) 1000
  27. 27.156 ÷ 3 =
  28. 28.192 ÷ 4 =
  29. 29.44 + ? = 100
  30. 30.71 + 19 =
  31. 31.69 − 25 =
  32. 32.Double 85 =
  33. 33.29 + 29 =
  34. 34.67 + 4 =
  35. 35.16 × 6 =
  36. 36.14 + 16 =
  37. 37.A film starts at 1:05 and ends at 4:05. How many minutes long is the film?
  38. 38.81 − 47 =
  39. 39.What is the remainder when 30 is divided by 4?
  40. 40.A film starts at 6:55 and ends at 9:45. How many minutes long is the film?

Answer key

  1. 12
  2. 89
  3. 245
  4. 42
  5. 28
  6. 330
  7. 45
  8. 43
  9. 21
  10. 4
  11. 36
  12. 77
  13. 76
  14. 46
  15. 177.5
  16. 19.5
  17. 83
  18. 27
  19. 50
  20. 61
  21. 6
  22. 142.5
  23. 42.5
  24. 50
  25. 128
  26. 1200
  27. 52
  28. 48
  29. 56
  30. 90
  31. 44
  32. 170
  33. 58
  34. 71
  35. 96
  36. 30
  37. 180
  38. 34
  39. 2
  40. 170

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