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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 193 · 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. 1.72 + 69 =
  2. 2.75 + 19 =
  3. 3.33 − 19 =
  4. 4.184 ÷ 8 =
  5. 5.59 − 43 =
  6. 6.196 ÷ 7 =
  7. 7.You start your homework at 5:10 and finish at 6:00. How many minutes did you work?
  8. 8.30 + 31 =
  9. 9.Half of 186 =
  10. 10.17² =
  11. 11.168 ÷ 7 =
  12. 12.153 ÷ 3 =
  13. 13.39 + 69 =
  14. 14.89 − 73 =
  15. 15.81 × 8 =
  16. 16.56 + 5 =
  17. 17.Best estimate of 341 + 809? (a) 1300 (b) 1100 (c) 900
  18. 18.25% of ₹650 =
  19. 19.Best estimate of 763 + 332? (a) 1100 (b) 900 (c) 1300
  20. 20.76 + 8 =
  21. 21.48 ÷ 4 =
  22. 22.56 ÷ 4 =
  23. 23.33 + 29 =
  24. 24.1007 − 977 =
  25. 25.Best estimate of 547 + 446? (a) 1100 (b) 900 (c) 700
  26. 26.225 ÷ 9 =
  27. 27.You buy a pencil box for ₹76 and pay with a ₹100 note. How much change do you get, in rupees?
  28. 28.50% of ₹400 =
  29. 29.11 + 12 =
  30. 30.28 + 30 =
  31. 31.10% of ₹50 =
  32. 32.5% of ₹310 =
  33. 33.621 ÷ 9 =
  34. 34.11² =
  35. 35.152 ÷ 8 =
  36. 36.240 ÷ 4 =
  37. 37.You buy a kite for ₹90 and pay with a ₹100 note. How much change do you get, in rupees?
  38. 38.Half of 42 =
  39. 39.Double 35 =
  40. 40.534 ÷ 6 =

Answer key

  1. 141
  2. 94
  3. 14
  4. 23
  5. 16
  6. 28
  7. 50
  8. 61
  9. 93
  10. 289
  11. 24
  12. 51
  13. 108
  14. 16
  15. 648
  16. 61
  17. 1100
  18. 162.5
  19. 1100
  20. 84
  21. 12
  22. 14
  23. 62
  24. 30
  25. 900
  26. 25
  27. 24
  28. 200
  29. 23
  30. 58
  31. 5
  32. 15.5
  33. 69
  34. 121
  35. 19
  36. 60
  37. 10
  38. 21
  39. 70
  40. 89

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