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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 134 · 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. 1.33 − 9 =
  2. 2.99 − 31 =
  3. 3.Half of 48 =
  4. 4.Double 73 =
  5. 5.81 × 8 =
  6. 6.97 − 60 =
  7. 7.68 − 12 =
  8. 8.10% of ₹300 =
  9. 9.209 − 186 =
  10. 10.Double 38 =
  11. 11.52 laddoos are packed in boxes of 7. How many laddoos are left over?
  12. 12.26 + 5 =
  13. 13.89 + ? = 100
  14. 14.16 + 17 =
  15. 15.19 + 20 =
  16. 16.77 − 37 =
  17. 17.37 + 7 =
  18. 18.81 + ? = 100
  19. 19.55 + 7 =
  20. 20.28 + 19 =
  21. 21.13 + 12 =
  22. 22.23 + ? = 100
  23. 23.50% of ₹660 =
  24. 24.You buy a notebook for ₹41 and a pen for ₹33. You pay with a ₹100 note. How much change do you get, in rupees?
  25. 25.74 + ? = 100
  26. 26.208 ÷ 8 =
  27. 27.75 − 36 =
  28. 28.204 ÷ 4 =
  29. 29.59 − 41 =
  30. 30.76 − 40 =
  31. 31.16² =
  32. 32.Best estimate of 26 × 76? (a) 2400 (b) 24000 (c) 240
  33. 33.25% of ₹440 =
  34. 34.301 ÷ 7 =
  35. 35.65 ÷ 5 =
  36. 36.A film starts at 7:55 and ends at 9:40. How many minutes long is the film?
  37. 37.83 − 68 =
  38. 38.17 + 7 =
  39. 39.16 × 4 =
  40. 40.38 laddoos are packed in boxes of 3. How many laddoos are left over?

Answer key

  1. 24
  2. 68
  3. 24
  4. 146
  5. 648
  6. 37
  7. 56
  8. 30
  9. 23
  10. 76
  11. 3
  12. 31
  13. 11
  14. 33
  15. 39
  16. 40
  17. 44
  18. 19
  19. 62
  20. 47
  21. 25
  22. 77
  23. 330
  24. 26
  25. 26
  26. 26
  27. 39
  28. 51
  29. 18
  30. 36
  31. 256
  32. 2400
  33. 110
  34. 43
  35. 13
  36. 105
  37. 15
  38. 24
  39. 64
  40. 2

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