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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 679 · 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. 1.9 + 9 =
  2. 2.104 ÷ 4 =
  3. 3.47 × 4 =
  4. 4.86 + 6 =
  5. 5.284 ÷ 4 =
  6. 6.54 − 29 =
  7. 7.17 × 8 =
  8. 8.69 + 58 =
  9. 9.39 children stand in rows of 7. How many full rows can they make?
  10. 10.50% of ₹620 =
  11. 11.25% of ₹670 =
  12. 12.What is the remainder when 84 is divided by 8?
  13. 13.26 + 27 =
  14. 14.48 + 4 =
  15. 15.216 ÷ 8 =
  16. 16.36 × 5 =
  17. 17.You start your homework at 7:50 and finish at 8:55. How many minutes did you work?
  18. 18.Double 97 =
  19. 19.36 − 9 =
  20. 20.10% of ₹490 =
  21. 21.5% of ₹300 =
  22. 22.Half of 76 =
  23. 23.Double 93 =
  24. 24.Half of 92 =
  25. 25.You buy a notebook for ₹17 and a pen for ₹27. You pay with a ₹100 note. How much change do you get, in rupees?
  26. 26.18² =
  27. 27.89 − 35 =
  28. 28.What is the remainder when 64 is divided by 5?
  29. 29.Best estimate of 727 + 564? (a) 1500 (b) 1100 (c) 1300
  30. 30.28² =
  31. 31.93 − 19 =
  32. 32.1006 − 986 =
  33. 33.A train leaves at 2:55 and reaches the next city at 3:50. How many minutes is the journey?
  34. 34.Best estimate of 41 × 96? (a) 400 (b) 40000 (c) 4000
  35. 35.You start your homework at 4:30 and finish at 5:30. How many minutes did you work?
  36. 36.1002 − 993 =
  37. 37.87 − 60 =
  38. 38.50% of ₹730 =
  39. 39.What is the remainder when 27 is divided by 4?
  40. 40.25% of ₹350 =

Answer key

  1. 18
  2. 26
  3. 188
  4. 92
  5. 71
  6. 25
  7. 136
  8. 127
  9. 5
  10. 310
  11. 167.5
  12. 4
  13. 53
  14. 52
  15. 27
  16. 180
  17. 65
  18. 194
  19. 27
  20. 49
  21. 15
  22. 38
  23. 186
  24. 46
  25. 56
  26. 324
  27. 54
  28. 4
  29. 1300
  30. 784
  31. 74
  32. 20
  33. 55
  34. 4000
  35. 60
  36. 9
  37. 27
  38. 365
  39. 3
  40. 87.5

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