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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 934 · 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. 1.17 × 7 =
  2. 2.95 − 29 =
  3. 3.Best estimate of 188 + 263? (a) 500 (b) 300 (c) 700
  4. 4.783 ÷ 9 =
  5. 5.A film starts at 6:10 and ends at 8:00. How many minutes long is the film?
  6. 6.20 × 4 =
  7. 7.Best estimate of 16 × 82? (a) 160 (b) 1600 (c) 16000
  8. 8.10% of ₹480 =
  9. 9.58 × 3 =
  10. 10.256 ÷ 8 =
  11. 11.Half of 94 =
  12. 12.Best estimate of 606 + 267? (a) 900 (b) 700 (c) 1100
  13. 13.74 + 48 =
  14. 14.94 − 58 =
  15. 15.26² =
  16. 16.50% of ₹490 =
  17. 17.64 × 9 =
  18. 18.34 × 4 =
  19. 19.13² =
  20. 20.55 − 35 =
  21. 21.49 × 6 =
  22. 22.50% of ₹460 =
  23. 23.438 − 99 =
  24. 24.176 ÷ 4 =
  25. 25.Best estimate of 60 × 12? (a) 6000 (b) 600 (c) 60
  26. 26.24² =
  27. 27.Double 78 =
  28. 28.Double 67 =
  29. 29.527 − 489 =
  30. 30.5% of ₹150 =
  31. 31.16 − 9 =
  32. 32.Double 29 =
  33. 33.65 − 21 =
  34. 34.Double 49 =
  35. 35.86 + 14 =
  36. 36.35 + 6 =
  37. 37.17 + 5 =
  38. 38.You buy a box of crayons for ₹14 and pay with a ₹100 note. How much change do you get, in rupees?
  39. 39.39 × 4 =
  40. 40.86 × 5 =

Answer key

  1. 119
  2. 66
  3. 500
  4. 87
  5. 110
  6. 80
  7. 1600
  8. 48
  9. 174
  10. 32
  11. 47
  12. 900
  13. 122
  14. 36
  15. 676
  16. 245
  17. 576
  18. 136
  19. 169
  20. 20
  21. 294
  22. 230
  23. 339
  24. 44
  25. 600
  26. 576
  27. 156
  28. 134
  29. 38
  30. 7.5
  31. 7
  32. 58
  33. 44
  34. 98
  35. 100
  36. 41
  37. 22
  38. 86
  39. 156
  40. 430

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