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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 899 · 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. 1.654 − 99 =
  2. 2.51 × 3 =
  3. 3.21 × 4 =
  4. 4.62 + 36 =
  5. 5.You buy a pencil box for ₹155 and pay with a ₹500 note. How much change do you get, in rupees?
  6. 6.29 + 59 =
  7. 7.77 + 31 =
  8. 8.A film starts at 5:20 and ends at 8:30. How many minutes long is the film?
  9. 9.50% of ₹170 =
  10. 10.73 + 19 =
  11. 11.320 ÷ 8 =
  12. 12.23 + 25 =
  13. 13.87 − 16 =
  14. 14.32 × 4 =
  15. 15.21 × 8 =
  16. 16.701 − 99 =
  17. 17.10% of ₹430 =
  18. 18.21² =
  19. 19.50% of ₹180 =
  20. 20.31 × 4 =
  21. 21.12 + 11 =
  22. 22.15² =
  23. 23.You start your homework at 5:50 and finish at 6:25. How many minutes did you work?
  24. 24.10% of ₹210 =
  25. 25.67 − 35 =
  26. 26.118 − 90 =
  27. 27.13² =
  28. 28.296 ÷ 4 =
  29. 29.12 + 29 =
  30. 30.85 − 65 =
  31. 31.15 × 8 =
  32. 32.156 ÷ 4 =
  33. 33.79 laddoos are packed in boxes of 6. How many laddoos are left over?
  34. 34.39 + 27 =
  35. 35.142 + 99 =
  36. 36.49 × 4 =
  37. 37.10% of ₹400 =
  38. 38.76 children stand in rows of 8. How many full rows can they make?
  39. 39.A film starts at 1:10 and ends at 1:40. How many minutes long is the film?
  40. 40.22 × 8 =

Answer key

  1. 555
  2. 153
  3. 84
  4. 98
  5. 345
  6. 88
  7. 108
  8. 190
  9. 85
  10. 92
  11. 40
  12. 48
  13. 71
  14. 128
  15. 168
  16. 602
  17. 43
  18. 441
  19. 90
  20. 124
  21. 23
  22. 225
  23. 35
  24. 21
  25. 32
  26. 28
  27. 169
  28. 74
  29. 41
  30. 20
  31. 120
  32. 39
  33. 1
  34. 66
  35. 241
  36. 196
  37. 40
  38. 9
  39. 30
  40. 176

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