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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 767 · 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. 1.12 × 8 =
  2. 2.232 ÷ 8 =
  3. 3.529 − 484 =
  4. 4.89 − 16 =
  5. 5.19 × 8 =
  6. 6.A train leaves at 8:50 and reaches the next city at 9:40. How many minutes is the journey?
  7. 7.513 − 498 =
  8. 8.You buy a box of crayons for ₹341 and pay with a ₹500 note. How much change do you get, in rupees?
  9. 9.101 − 75 =
  10. 10.5% of ₹350 =
  11. 11.17 + 9 =
  12. 12.24² =
  13. 13.19 + 2 =
  14. 14.28² =
  15. 15.52 × 4 =
  16. 16.309 − 288 =
  17. 17.35 + 8 =
  18. 18.75 − 18 =
  19. 19.113 − 94 =
  20. 20.13 + ? = 100
  21. 21.60 − 12 =
  22. 22.12² =
  23. 23.4 + ? = 10
  24. 24.You buy a kite for ₹15 and a pen for ₹35. You pay with a ₹100 note. How much change do you get, in rupees?
  25. 25.61 × 9 =
  26. 26.57 + 72 =
  27. 27.13 + 15 =
  28. 28.105 − 76 =
  29. 29.79 − 40 =
  30. 30.Half of 56 =
  31. 31.11² =
  32. 32.You buy a box of crayons for ₹410 and pay with a ₹500 note. How much change do you get, in rupees?
  33. 33.Half of 68 =
  34. 34.You start your homework at 6:20 and finish at 9:10. How many minutes did you work?
  35. 35.345 ÷ 5 =
  36. 36.21 + 23 =
  37. 37.164 ÷ 4 =
  38. 38.59 + 19 =
  39. 39.15 + 16 =
  40. 40.78 − 54 =

Answer key

  1. 96
  2. 29
  3. 45
  4. 73
  5. 152
  6. 50
  7. 15
  8. 159
  9. 26
  10. 17.5
  11. 26
  12. 576
  13. 21
  14. 784
  15. 208
  16. 21
  17. 43
  18. 57
  19. 19
  20. 87
  21. 48
  22. 144
  23. 6
  24. 50
  25. 549
  26. 129
  27. 28
  28. 29
  29. 39
  30. 28
  31. 121
  32. 90
  33. 34
  34. 170
  35. 69
  36. 44
  37. 41
  38. 78
  39. 31
  40. 24

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