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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 555 · 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. 1.85 laddoos are packed in boxes of 9. How many laddoos are left over?
  2. 2.A film starts at 1:50 and ends at 2:45. How many minutes long is the film?
  3. 3.78 − 67 =
  4. 4.14² =
  5. 5.32 + 51 =
  6. 6.66 + 6 =
  7. 7.57 + 29 =
  8. 8.16² =
  9. 9.A train leaves at 8:40 and reaches the next city at 11:45. How many minutes is the journey?
  10. 10.70 + ? = 100
  11. 11.75 + 6 =
  12. 12.45 + 56 =
  13. 13.10% of ₹440 =
  14. 14.7 + 8 =
  15. 15.A train leaves at 4:30 and reaches the next city at 6:20. How many minutes is the journey?
  16. 16.23 × 8 =
  17. 17.24 + 25 =
  18. 18.73 + 41 =
  19. 19.24 + 26 =
  20. 20.29 × 9 =
  21. 21.21 × 4 =
  22. 22.92 × 6 =
  23. 23.515 − 498 =
  24. 24.47 + 14 =
  25. 25.66 + 8 =
  26. 26.28 + 8 =
  27. 27.87 − 70 =
  28. 28.Best estimate of 829 + 437? (a) 1400 (b) 1200 (c) 1000
  29. 29.43 + 21 =
  30. 30.What is the remainder when 76 is divided by 5?
  31. 31.83 + 12 =
  32. 32.58 + 9 =
  33. 33.Best estimate of 273 + 677? (a) 1200 (b) 800 (c) 1000
  34. 34.26 × 4 =
  35. 35.33 × 8 =
  36. 36.79 − 42 =
  37. 37.11² =
  38. 38.76 + 29 =
  39. 39.75 − 46 =
  40. 40.68 + 8 =

Answer key

  1. 4
  2. 55
  3. 11
  4. 196
  5. 83
  6. 72
  7. 86
  8. 256
  9. 185
  10. 30
  11. 81
  12. 101
  13. 44
  14. 15
  15. 110
  16. 184
  17. 49
  18. 114
  19. 50
  20. 261
  21. 84
  22. 552
  23. 17
  24. 61
  25. 74
  26. 36
  27. 17
  28. 1200
  29. 64
  30. 1
  31. 95
  32. 67
  33. 1000
  34. 104
  35. 264
  36. 37
  37. 121
  38. 105
  39. 29
  40. 76

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