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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 15 · 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. 1.1 + ? = 10
  2. 2.5% of ₹210 =
  3. 3.Double 48 =
  4. 4.25 + 27 =
  5. 5.39 × 3 =
  6. 6.Double 61 =
  7. 7.317 − 286 =
  8. 8.70 + 17 =
  9. 9.53 − 34 =
  10. 10.21 × 4 =
  11. 11.53 laddoos are packed in boxes of 7. How many laddoos are left over?
  12. 12.109 − 62 =
  13. 13.17 − 9 =
  14. 14.220 ÷ 4 =
  15. 15.25% of ₹720 =
  16. 16.211 − 183 =
  17. 17.38 × 4 =
  18. 18.5% of ₹100 =
  19. 19.12 + 29 =
  20. 20.What is the remainder when 139 is divided by 9?
  21. 21.You buy a box of crayons for ₹56 and pay with a ₹100 note. How much change do you get, in rupees?
  22. 22.23 × 8 =
  23. 23.You buy a water bottle for ₹475 and pay with a ₹500 note. How much change do you get, in rupees?
  24. 24.Double 97 =
  25. 25.42 + 31 =
  26. 26.45 × 8 =
  27. 27.Best estimate of 90 × 24? (a) 1800 (b) 180 (c) 18000
  28. 28.40 × 8 =
  29. 29.305 − 285 =
  30. 30.67 + 66 =
  31. 31.25 + 8 =
  32. 32.774 ÷ 9 =
  33. 33.What is the remainder when 14 is divided by 3?
  34. 34.26 × 8 =
  35. 35.What is the remainder when 35 is divided by 3?
  36. 36.21 + 44 =
  37. 37.101 − 29 =
  38. 38.17 + 9 =
  39. 39.28 × 4 =
  40. 40.55 − 18 =

Answer key

  1. 9
  2. 10.5
  3. 96
  4. 52
  5. 117
  6. 122
  7. 31
  8. 87
  9. 19
  10. 84
  11. 4
  12. 47
  13. 8
  14. 55
  15. 180
  16. 28
  17. 152
  18. 5
  19. 41
  20. 4
  21. 44
  22. 184
  23. 25
  24. 194
  25. 73
  26. 360
  27. 1800
  28. 320
  29. 20
  30. 133
  31. 33
  32. 86
  33. 2
  34. 208
  35. 2
  36. 65
  37. 72
  38. 26
  39. 112
  40. 37

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