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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 602 · 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. 1.30 × 8 =
  2. 2.2 + ? = 10
  3. 3.98 × 9 =
  4. 4.What is the remainder when 23 is divided by 4?
  5. 5.62 − 47 =
  6. 6.You start your homework at 4:25 and finish at 5:05. How many minutes did you work?
  7. 7.59 + 19 =
  8. 8.18 + 5 =
  9. 9.17 + 18 =
  10. 10.Double 93 =
  11. 11.50% of ₹390 =
  12. 12.29 laddoos are packed in boxes of 4. How many laddoos are left over?
  13. 13.22 + 19 =
  14. 14.36 + 5 =
  15. 15.30 + 9 =
  16. 16.60 + ? = 100
  17. 17.256 ÷ 8 =
  18. 18.7 + 6 =
  19. 19.10% of ₹540 =
  20. 20.Best estimate of 233 + 667? (a) 700 (b) 900 (c) 1100
  21. 21.388 ÷ 4 =
  22. 22.You buy a water bottle for ₹56 and pay with a ₹100 note. How much change do you get, in rupees?
  23. 23.5% of ₹200 =
  24. 24.21² =
  25. 25.57 + 4 =
  26. 26.5% of ₹400 =
  27. 27.33 + 29 =
  28. 28.73 − 28 =
  29. 29.Half of 32 =
  30. 30.13 × 8 =
  31. 31.What is the remainder when 61 is divided by 4?
  32. 32.You buy a bag of mangoes for ₹52 and pay with a ₹100 note. How much change do you get, in rupees?
  33. 33.152 ÷ 4 =
  34. 34.56 + 7 =
  35. 35.69 − 12 =
  36. 36.60 − 40 =
  37. 37.59 − 31 =
  38. 38.26 × 9 =
  39. 39.26² =
  40. 40.31 × 9 =

Answer key

  1. 240
  2. 8
  3. 882
  4. 3
  5. 15
  6. 40
  7. 78
  8. 23
  9. 35
  10. 186
  11. 195
  12. 1
  13. 41
  14. 41
  15. 39
  16. 40
  17. 32
  18. 13
  19. 54
  20. 900
  21. 97
  22. 44
  23. 10
  24. 441
  25. 61
  26. 20
  27. 62
  28. 45
  29. 16
  30. 104
  31. 1
  32. 48
  33. 38
  34. 63
  35. 57
  36. 20
  37. 28
  38. 234
  39. 676
  40. 279

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