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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 616 · 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.Double 95 =
  2. 2.50% of ₹290 =
  3. 3.50 laddoos are packed in boxes of 4. How many laddoos are left over?
  4. 4.83 + 35 =
  5. 5.69 + 3 =
  6. 6.10% of ₹320 =
  7. 7.38 + 3 =
  8. 8.What is the remainder when 19 is divided by 3?
  9. 9.35 + ? = 100
  10. 10.25 + ? = 100
  11. 11.9 + 10 =
  12. 12.41 × 3 =
  13. 13.85 − 58 =
  14. 14.A cricket match starts at 5:30 and the first innings ends at 7:05. How many minutes did the innings last?
  15. 15.Half of 158 =
  16. 16.58 × 7 =
  17. 17.33 + 37 =
  18. 18.128 ÷ 4 =
  19. 19.67 − 31 =
  20. 20.87 − 9 =
  21. 21.105 − 85 =
  22. 22.96 ÷ 4 =
  23. 23.23 + 24 =
  24. 24.7 + 6 =
  25. 25.11 + 13 =
  26. 26.23² =
  27. 27.Best estimate of 58 × 54? (a) 3000 (b) 300 (c) 30000
  28. 28.13 + 14 =
  29. 29.What is the remainder when 17 is divided by 4?
  30. 30.29 + 8 =
  31. 31.12² =
  32. 32.69 × 4 =
  33. 33.You start your homework at 2:05 and finish at 4:15. How many minutes did you work?
  34. 34.752 ÷ 8 =
  35. 35.45 × 4 =
  36. 36.46 + 6 =
  37. 37.12 × 4 =
  38. 38.87 ÷ 3 =
  39. 39.87 − 49 =
  40. 40.26 + 13 =

Answer key

  1. 190
  2. 145
  3. 2
  4. 118
  5. 72
  6. 32
  7. 41
  8. 1
  9. 65
  10. 75
  11. 19
  12. 123
  13. 27
  14. 95
  15. 79
  16. 406
  17. 70
  18. 32
  19. 36
  20. 78
  21. 20
  22. 24
  23. 47
  24. 13
  25. 24
  26. 529
  27. 3000
  28. 27
  29. 1
  30. 37
  31. 144
  32. 276
  33. 130
  34. 94
  35. 180
  36. 52
  37. 48
  38. 29
  39. 38
  40. 39

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