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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 919 · 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. 1.19 × 4 =
  2. 2.Best estimate of 96 × 23? (a) 20000 (b) 2000 (c) 200
  3. 3.21² =
  4. 4.59 + 2 =
  5. 5.7 + 7 =
  6. 6.65 − 53 =
  7. 7.41 + 33 =
  8. 8.45 × 4 =
  9. 9.19² =
  10. 10.39 + 7 =
  11. 11.57 × 5 =
  12. 12.208 ÷ 8 =
  13. 13.You buy a water bottle for ₹11 and pay with a ₹100 note. How much change do you get, in rupees?
  14. 14.18 + ? = 100
  15. 15.55 + ? = 100
  16. 16.345 ÷ 5 =
  17. 17.7 + 9 =
  18. 18.A cricket match starts at 8:20 and the first innings ends at 8:50. How many minutes did the innings last?
  19. 19.58 + ? = 100
  20. 20.103 − 96 =
  21. 21.16 × 8 =
  22. 22.42 + 89 =
  23. 23.49 + 3 =
  24. 24.10% of ₹350 =
  25. 25.46 + 19 =
  26. 26.79 laddoos are packed in boxes of 7. How many laddoos are left over?
  27. 27.28 + 87 =
  28. 28.You start your homework at 4:30 and finish at 5:15. How many minutes did you work?
  29. 29.50% of ₹700 =
  30. 30.23 + 22 =
  31. 31.15² =
  32. 32.651 ÷ 7 =
  33. 33.61 × 4 =
  34. 34.427 + 99 =
  35. 35.Half of 94 =
  36. 36.19 + 4 =
  37. 37.352 ÷ 4 =
  38. 38.164 ÷ 4 =
  39. 39.234 ÷ 6 =
  40. 40.64 × 4 =

Answer key

  1. 76
  2. 2000
  3. 441
  4. 61
  5. 14
  6. 12
  7. 74
  8. 180
  9. 361
  10. 46
  11. 285
  12. 26
  13. 89
  14. 82
  15. 45
  16. 69
  17. 16
  18. 30
  19. 42
  20. 7
  21. 128
  22. 131
  23. 52
  24. 35
  25. 65
  26. 2
  27. 115
  28. 45
  29. 350
  30. 45
  31. 225
  32. 93
  33. 244
  34. 526
  35. 47
  36. 23
  37. 88
  38. 41
  39. 39
  40. 256

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