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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 471 · 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. 1.51 × 9 =
  2. 2.5% of ₹750 =
  3. 3.Double 26 =
  4. 4.60 ÷ 4 =
  5. 5.37 − 29 =
  6. 6.568 + 99 =
  7. 7.14 × 4 =
  8. 8.You buy a pencil box for ₹20 and a pen for ₹32. You pay with a ₹100 note. How much change do you get, in rupees?
  9. 9.16 + 18 =
  10. 10.5% of ₹400 =
  11. 11.Best estimate of 607 + 189? (a) 600 (b) 800 (c) 1000
  12. 12.144 ÷ 4 =
  13. 13.48 + 7 =
  14. 14.28 + 27 =
  15. 15.66 + ? = 100
  16. 16.40 × 8 =
  17. 17.79 + 79 =
  18. 18.18 + 17 =
  19. 19.68 − 14 =
  20. 20.33 laddoos are packed in boxes of 4. How many laddoos are left over?
  21. 21.93 − 61 =
  22. 22.74 × 4 =
  23. 23.You start your homework at 8:00 and finish at 8:30. How many minutes did you work?
  24. 24.80 − 39 =
  25. 25.You buy a water bottle for ₹16 and a pen for ₹21. You pay with a ₹100 note. How much change do you get, in rupees?
  26. 26.29 + 30 =
  27. 27.7 + ? = 10
  28. 28.16 × 5 =
  29. 29.61 × 6 =
  30. 30.71 + ? = 100
  31. 31.91 × 4 =
  32. 32.17 + 9 =
  33. 33.64 × 4 =
  34. 34.46 + 68 =
  35. 35.18 + 20 =
  36. 36.42 ÷ 3 =
  37. 37.48 ÷ 4 =
  38. 38.Half of 106 =
  39. 39.What is the remainder when 27 is divided by 5?
  40. 40.75 ÷ 3 =

Answer key

  1. 459
  2. 37.5
  3. 52
  4. 15
  5. 8
  6. 667
  7. 56
  8. 48
  9. 34
  10. 20
  11. 800
  12. 36
  13. 55
  14. 55
  15. 34
  16. 320
  17. 158
  18. 35
  19. 54
  20. 1
  21. 32
  22. 296
  23. 30
  24. 41
  25. 63
  26. 59
  27. 3
  28. 80
  29. 366
  30. 29
  31. 364
  32. 26
  33. 256
  34. 114
  35. 38
  36. 14
  37. 12
  38. 53
  39. 2
  40. 25

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