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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 435 · 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. 1.13 × 8 =
  2. 2.34 × 4 =
  3. 3.1025 − 981 =
  4. 4.50% of ₹230 =
  5. 5.30 + 76 =
  6. 6.30 × 8 =
  7. 7.25 × 8 =
  8. 8.27 + 29 =
  9. 9.6 + 8 =
  10. 10.18 × 8 =
  11. 11.A film starts at 4:00 and ends at 6:25. How many minutes long is the film?
  12. 12.81 × 3 =
  13. 13.2 + ? = 10
  14. 14.448 ÷ 8 =
  15. 15.32 + 19 =
  16. 16.71 − 22 =
  17. 17.12 + 13 =
  18. 18.88 − 29 =
  19. 19.Double 28 =
  20. 20.90 ÷ 6 =
  21. 21.26 + 28 =
  22. 22.You buy a pencil box for ₹389 and pay with a ₹500 note. How much change do you get, in rupees?
  23. 23.3 + ? = 10
  24. 24.240 ÷ 8 =
  25. 25.You buy a storybook for ₹119 and pay with a ₹500 note. How much change do you get, in rupees?
  26. 26.Double 39 =
  27. 27.22² =
  28. 28.15 + ? = 100
  29. 29.78 × 8 =
  30. 30.67 + ? = 100
  31. 31.5% of ₹530 =
  32. 32.Best estimate of 822 + 235? (a) 1200 (b) 800 (c) 1000
  33. 33.35 + 6 =
  34. 34.A film starts at 3:25 and ends at 6:45. How many minutes long is the film?
  35. 35.Best estimate of 52 × 46? (a) 250 (b) 25000 (c) 2500
  36. 36.52 × 5 =
  37. 37.25 + ? = 100
  38. 38.25% of ₹410 =
  39. 39.6 + 5 =
  40. 40.50% of ₹200 =

Answer key

  1. 104
  2. 136
  3. 44
  4. 115
  5. 106
  6. 240
  7. 200
  8. 56
  9. 14
  10. 144
  11. 145
  12. 243
  13. 8
  14. 56
  15. 51
  16. 49
  17. 25
  18. 59
  19. 56
  20. 15
  21. 54
  22. 111
  23. 7
  24. 30
  25. 381
  26. 78
  27. 484
  28. 85
  29. 624
  30. 33
  31. 26.5
  32. 1000
  33. 41
  34. 200
  35. 2500
  36. 260
  37. 75
  38. 102.5
  39. 11
  40. 100

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