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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 252 · 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 + 84 =
  2. 2.23 + 49 =
  3. 3.You buy a water bottle for ₹25 and pay with a ₹100 note. How much change do you get, in rupees?
  4. 4.41 × 8 =
  5. 5.176 ÷ 4 =
  6. 6.204 − 176 =
  7. 7.45 + 29 =
  8. 8.385 ÷ 7 =
  9. 9.79 + 9 =
  10. 10.14² =
  11. 11.49 + 7 =
  12. 12.152 ÷ 4 =
  13. 13.67 + 6 =
  14. 14.89 + 8 =
  15. 15.A train leaves at 7:15 and reaches the next city at 10:15. How many minutes is the journey?
  16. 16.24 + 23 =
  17. 17.23 + ? = 100
  18. 18.You start your homework at 1:40 and finish at 2:45. How many minutes did you work?
  19. 19.You buy a cricket ball for ₹64 and pay with a ₹100 note. How much change do you get, in rupees?
  20. 20.69 + 38 =
  21. 21.74 − 47 =
  22. 22.392 ÷ 7 =
  23. 23.35 + 29 =
  24. 24.Best estimate of 47 × 13? (a) 5000 (b) 500 (c) 50
  25. 25.25% of ₹540 =
  26. 26.24 + 9 =
  27. 27.120 ÷ 4 =
  28. 28.21 + 23 =
  29. 29.94 − 74 =
  30. 30.248 ÷ 8 =
  31. 31.50 + 9 =
  32. 32.69 + 9 =
  33. 33.152 ÷ 8 =
  34. 34.31 + 64 =
  35. 35.36 + 8 =
  36. 36.200 ÷ 4 =
  37. 37.96 ÷ 8 =
  38. 38.89 × 5 =
  39. 39.40 + 66 =
  40. 40.43 + ? = 100

Answer key

  1. 114
  2. 72
  3. 75
  4. 328
  5. 44
  6. 28
  7. 74
  8. 55
  9. 88
  10. 196
  11. 56
  12. 38
  13. 73
  14. 97
  15. 180
  16. 47
  17. 77
  18. 65
  19. 36
  20. 107
  21. 27
  22. 56
  23. 64
  24. 500
  25. 135
  26. 33
  27. 30
  28. 44
  29. 20
  30. 31
  31. 59
  32. 78
  33. 19
  34. 95
  35. 44
  36. 50
  37. 12
  38. 445
  39. 106
  40. 57

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