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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 251 · 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. 1.35 + 81 =
  2. 2.28 + 3 =
  3. 3.361 − 99 =
  4. 4.Double 39 =
  5. 5.12 + 11 =
  6. 6.78 − 53 =
  7. 7.296 ÷ 8 =
  8. 8.6 + 7 =
  9. 9.81 × 7 =
  10. 10.63 − 27 =
  11. 11.Best estimate of 591 + 185? (a) 800 (b) 600 (c) 1000
  12. 12.72 × 5 =
  13. 13.25% of ₹260 =
  14. 14.87 + 63 =
  15. 15.44 × 4 =
  16. 16.7 + 6 =
  17. 17.6 + 5 =
  18. 18.You buy a cricket ball for ₹213 and pay with a ₹500 note. How much change do you get, in rupees?
  19. 19.50% of ₹590 =
  20. 20.28 − 9 =
  21. 21.5% of ₹580 =
  22. 22.120 ÷ 4 =
  23. 23.96 ÷ 4 =
  24. 24.10% of ₹420 =
  25. 25.65 + 9 =
  26. 26.232 − 99 =
  27. 27.You buy a notebook for ₹17 and a pen for ₹30. You pay with a ₹100 note. How much change do you get, in rupees?
  28. 28.325 − 279 =
  29. 29.88 − 34 =
  30. 30.50 + 27 =
  31. 31.55 + 6 =
  32. 32.Best estimate of 46 × 86? (a) 45000 (b) 450 (c) 4500
  33. 33.55 + 26 =
  34. 34.Double 94 =
  35. 35.49 + 82 =
  36. 36.45 + 75 =
  37. 37.30 + 31 =
  38. 38.58 + 34 =
  39. 39.89 − 47 =
  40. 40.25% of ₹860 =

Answer key

  1. 116
  2. 31
  3. 262
  4. 78
  5. 23
  6. 25
  7. 37
  8. 13
  9. 567
  10. 36
  11. 800
  12. 360
  13. 65
  14. 150
  15. 176
  16. 13
  17. 11
  18. 287
  19. 295
  20. 19
  21. 29
  22. 30
  23. 24
  24. 42
  25. 74
  26. 133
  27. 53
  28. 46
  29. 54
  30. 77
  31. 61
  32. 4500
  33. 81
  34. 188
  35. 131
  36. 120
  37. 61
  38. 92
  39. 42
  40. 215

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