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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 79 · 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. 1.92 − 16 =
  2. 2.74 + 87 =
  3. 3.7 + ? = 10
  4. 4.61 × 7 =
  5. 5.8 + 9 =
  6. 6.5% of ₹190 =
  7. 7.45 + 8 =
  8. 8.19 × 8 =
  9. 9.272 ÷ 8 =
  10. 10.1 + ? = 10
  11. 11.2 + ? = 10
  12. 12.40 × 4 =
  13. 13.702 − 99 =
  14. 14.A film starts at 1:10 and ends at 3:25. How many minutes long is the film?
  15. 15.70 + 67 =
  16. 16.29 × 8 =
  17. 17.5 + 8 =
  18. 18.59 children stand in rows of 7. How many full rows can they make?
  19. 19.62 × 8 =
  20. 20.96 × 4 =
  21. 21.392 ÷ 8 =
  22. 22.Double 64 =
  23. 23.69 − 31 =
  24. 24.1028 − 992 =
  25. 25.505 − 494 =
  26. 26.A film starts at 1:25 and ends at 2:20. How many minutes long is the film?
  27. 27.184 ÷ 8 =
  28. 28.You buy a storybook for ₹11 and a pen for ₹32. You pay with a ₹100 note. How much change do you get, in rupees?
  29. 29.88 + 7 =
  30. 30.Best estimate of 195 + 672? (a) 700 (b) 900 (c) 1100
  31. 31.60 − 33 =
  32. 32.What is the remainder when 44 is divided by 7?
  33. 33.Half of 56 =
  34. 34.25% of ₹320 =
  35. 35.Best estimate of 96 × 19? (a) 200 (b) 20000 (c) 2000
  36. 36.256 ÷ 8 =
  37. 37.85 + 8 =
  38. 38.81 × 6 =
  39. 39.Double 83 =
  40. 40.96 ÷ 4 =

Answer key

  1. 76
  2. 161
  3. 3
  4. 427
  5. 17
  6. 9.5
  7. 53
  8. 152
  9. 34
  10. 9
  11. 8
  12. 160
  13. 603
  14. 135
  15. 137
  16. 232
  17. 13
  18. 8
  19. 496
  20. 384
  21. 49
  22. 128
  23. 38
  24. 36
  25. 11
  26. 55
  27. 23
  28. 57
  29. 95
  30. 900
  31. 27
  32. 2
  33. 28
  34. 80
  35. 2000
  36. 32
  37. 93
  38. 486
  39. 166
  40. 24

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