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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 425 · 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. 1.6 + 7 =
  2. 2.38 + 5 =
  3. 3.Half of 52 =
  4. 4.You start your homework at 4:20 and finish at 6:35. How many minutes did you work?
  5. 5.A film starts at 5:35 and ends at 7:25. How many minutes long is the film?
  6. 6.66 + 6 =
  7. 7.728 ÷ 8 =
  8. 8.26 + 14 =
  9. 9.You buy a cricket ball for ₹11 and a pen for ₹41. You pay with a ₹100 note. How much change do you get, in rupees?
  10. 10.112 ÷ 7 =
  11. 11.63 + ? = 100
  12. 12.47 + 5 =
  13. 13.8 + ? = 10
  14. 14.340 ÷ 4 =
  15. 15.Double 78 =
  16. 16.50 − 29 =
  17. 17.21 + 68 =
  18. 18.30 + 29 =
  19. 19.53 + 19 =
  20. 20.You buy a water bottle for ₹167 and pay with a ₹500 note. How much change do you get, in rupees?
  21. 21.6 + 9 =
  22. 22.27 + 8 =
  23. 23.144 ÷ 4 =
  24. 24.Half of 156 =
  25. 25.83 + 38 =
  26. 26.86 − 9 =
  27. 27.48 + ? = 100
  28. 28.58 × 4 =
  29. 29.25% of ₹410 =
  30. 30.15 × 8 =
  31. 31.49 + 7 =
  32. 32.3 + ? = 10
  33. 33.10% of ₹360 =
  34. 34.57 + 77 =
  35. 35.48 ÷ 4 =
  36. 36.201 − 175 =
  37. 37.22 + 23 =
  38. 38.104 − 66 =
  39. 39.320 ÷ 8 =
  40. 40.55 + 81 =

Answer key

  1. 13
  2. 43
  3. 26
  4. 135
  5. 110
  6. 72
  7. 91
  8. 40
  9. 48
  10. 16
  11. 37
  12. 52
  13. 2
  14. 85
  15. 156
  16. 21
  17. 89
  18. 59
  19. 72
  20. 333
  21. 15
  22. 35
  23. 36
  24. 78
  25. 121
  26. 77
  27. 52
  28. 232
  29. 102.5
  30. 120
  31. 56
  32. 7
  33. 36
  34. 134
  35. 12
  36. 26
  37. 45
  38. 38
  39. 40
  40. 136

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