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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 2 · 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. 1.87 × 6 =
  2. 2.1 + ? = 10
  3. 3.13 × 4 =
  4. 4.You buy a bag of mangoes for ₹415 and pay with a ₹500 note. How much change do you get, in rupees?
  5. 5.88 ÷ 4 =
  6. 6.19 + 29 =
  7. 7.28 + 29 =
  8. 8.17 × 4 =
  9. 9.48 × 8 =
  10. 10.62 − 25 =
  11. 11.78 + 9 =
  12. 12.113 − 90 =
  13. 13.59 × 4 =
  14. 14.You start your homework at 1:00 and finish at 4:10. How many minutes did you work?
  15. 15.29 × 7 =
  16. 16.16 + 6 =
  17. 17.Best estimate of 151 + 699? (a) 900 (b) 1100 (c) 700
  18. 18.200 ÷ 8 =
  19. 19.50% of ₹560 =
  20. 20.48 + ? = 100
  21. 21.What is the remainder when 52 is divided by 9?
  22. 22.33 × 8 =
  23. 23.Best estimate of 87 × 97? (a) 9000 (b) 900 (c) 90000
  24. 24.What is the remainder when 37 is divided by 9?
  25. 25.Half of 160 =
  26. 26.84 + 82 =
  27. 27.75 + 8 =
  28. 28.24² =
  29. 29.15 × 8 =
  30. 30.64 − 24 =
  31. 31.216 ÷ 8 =
  32. 32.14² =
  33. 33.108 ÷ 4 =
  34. 34.118 + 99 =
  35. 35.5% of ₹60 =
  36. 36.44 × 4 =
  37. 37.71 + 9 =
  38. 38.57 + ? = 100
  39. 39.88 + 7 =
  40. 40.64 − 34 =

Answer key

  1. 522
  2. 9
  3. 52
  4. 85
  5. 22
  6. 48
  7. 57
  8. 68
  9. 384
  10. 37
  11. 87
  12. 23
  13. 236
  14. 190
  15. 203
  16. 22
  17. 900
  18. 25
  19. 280
  20. 52
  21. 7
  22. 264
  23. 9000
  24. 1
  25. 80
  26. 166
  27. 83
  28. 576
  29. 120
  30. 40
  31. 27
  32. 196
  33. 27
  34. 217
  35. 3
  36. 176
  37. 80
  38. 43
  39. 95
  40. 30

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