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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 73 · 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.Double 51 =
  2. 2.488 ÷ 8 =
  3. 3.Double 75 =
  4. 4.24 children stand in rows of 5. How many full rows can they make?
  5. 5.28 − 19 =
  6. 6.85 − 9 =
  7. 7.18 + 19 =
  8. 8.51 × 8 =
  9. 9.9 + ? = 10
  10. 10.100 ÷ 4 =
  11. 11.33 + 29 =
  12. 12.27 + 31 =
  13. 13.You buy a storybook for ₹35 and a pen for ₹43. You pay with a ₹100 note. How much change do you get, in rupees?
  14. 14.58 children stand in rows of 8. How many full rows can they make?
  15. 15.Best estimate of 804 + 223? (a) 800 (b) 1000 (c) 1200
  16. 16.You start your homework at 5:25 and finish at 7:00. How many minutes did you work?
  17. 17.62 children stand in rows of 6. How many full rows can they make?
  18. 18.49 × 7 =
  19. 19.64 + 66 =
  20. 20.53 + ? = 100
  21. 21.25% of ₹610 =
  22. 22.65 + 89 =
  23. 23.22 + 53 =
  24. 24.You buy a kite for ₹42 and pay with a ₹100 note. How much change do you get, in rupees?
  25. 25.Best estimate of 787 + 687? (a) 1700 (b) 1300 (c) 1500
  26. 26.91 − 63 =
  27. 27.75 × 5 =
  28. 28.A cricket match starts at 5:40 and the first innings ends at 8:50. How many minutes did the innings last?
  29. 29.15² =
  30. 30.What is the remainder when 39 is divided by 7?
  31. 31.69 + 9 =
  32. 32.9 + 11 =
  33. 33.25% of ₹600 =
  34. 34.26² =
  35. 35.You buy a water bottle for ₹168 and pay with a ₹500 note. How much change do you get, in rupees?
  36. 36.Best estimate of 211 + 431? (a) 600 (b) 400 (c) 800
  37. 37.You start your homework at 4:30 and finish at 6:10. How many minutes did you work?
  38. 38.A train leaves at 7:00 and reaches the next city at 8:45. How many minutes is the journey?
  39. 39.A film starts at 8:15 and ends at 10:35. How many minutes long is the film?
  40. 40.3 + ? = 10

Answer key

  1. 102
  2. 61
  3. 150
  4. 4
  5. 9
  6. 76
  7. 37
  8. 408
  9. 1
  10. 25
  11. 62
  12. 58
  13. 22
  14. 7
  15. 1000
  16. 95
  17. 10
  18. 343
  19. 130
  20. 47
  21. 152.5
  22. 154
  23. 75
  24. 58
  25. 1500
  26. 28
  27. 375
  28. 190
  29. 225
  30. 4
  31. 78
  32. 20
  33. 150
  34. 676
  35. 332
  36. 600
  37. 100
  38. 105
  39. 140
  40. 7

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