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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 96 · 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. 1.26 + 37 =
  2. 2.26² =
  3. 3.15 × 7 =
  4. 4.71 + 12 =
  5. 5.Best estimate of 588 + 463? (a) 1100 (b) 900 (c) 1300
  6. 6.13 + 12 =
  7. 7.You buy a cricket ball for ₹20 and a pen for ₹44. You pay with a ₹100 note. How much change do you get, in rupees?
  8. 8.28 + 29 =
  9. 9.97 − 41 =
  10. 10.50% of ₹300 =
  11. 11.1007 − 998 =
  12. 12.10% of ₹700 =
  13. 13.56 × 6 =
  14. 14.74 × 3 =
  15. 15.99 − 53 =
  16. 16.12 + 13 =
  17. 17.22² =
  18. 18.80 ÷ 4 =
  19. 19.152 ÷ 4 =
  20. 20.Best estimate of 48 × 70? (a) 350 (b) 3500 (c) 35000
  21. 21.What is the remainder when 43 is divided by 6?
  22. 22.25² =
  23. 23.27 + 9 =
  24. 24.21 + ? = 100
  25. 25.What is the remainder when 58 is divided by 4?
  26. 26.39 × 8 =
  27. 27.104 ÷ 8 =
  28. 28.36 × 4 =
  29. 29.273 ÷ 3 =
  30. 30.5% of ₹270 =
  31. 31.348 ÷ 6 =
  32. 32.256 ÷ 8 =
  33. 33.54 + 29 =
  34. 34.88 × 3 =
  35. 35.A film starts at 1:30 and ends at 3:15. How many minutes long is the film?
  36. 36.34 + 32 =
  37. 37.You buy a bag of mangoes for ₹158 and pay with a ₹500 note. How much change do you get, in rupees?
  38. 38.55 × 4 =
  39. 39.33 × 6 =
  40. 40.66 + ? = 100

Answer key

  1. 63
  2. 676
  3. 105
  4. 83
  5. 1100
  6. 25
  7. 36
  8. 57
  9. 56
  10. 150
  11. 9
  12. 70
  13. 336
  14. 222
  15. 46
  16. 25
  17. 484
  18. 20
  19. 38
  20. 3500
  21. 1
  22. 625
  23. 36
  24. 79
  25. 2
  26. 312
  27. 13
  28. 144
  29. 91
  30. 13.5
  31. 58
  32. 32
  33. 83
  34. 264
  35. 105
  36. 66
  37. 342
  38. 220
  39. 198
  40. 34

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