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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 195 · 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. 1.58 + 89 =
  2. 2.455 ÷ 5 =
  3. 3.92 ÷ 4 =
  4. 4.21² =
  5. 5.74 − 29 =
  6. 6.1016 − 976 =
  7. 7.29 × 8 =
  8. 8.29 × 5 =
  9. 9.Best estimate of 74 × 88? (a) 6300 (b) 63000 (c) 630
  10. 10.You start your homework at 8:10 and finish at 9:40. How many minutes did you work?
  11. 11.You start your homework at 8:10 and finish at 10:20. How many minutes did you work?
  12. 12.Best estimate of 84 × 12? (a) 8000 (b) 800 (c) 80
  13. 13.7 + ? = 10
  14. 14.2 + ? = 10
  15. 15.86 + 5 =
  16. 16.Double 34 =
  17. 17.476 ÷ 7 =
  18. 18.40 × 8 =
  19. 19.248 ÷ 8 =
  20. 20.23 + 38 =
  21. 21.Best estimate of 182 + 627? (a) 800 (b) 600 (c) 1000
  22. 22.152 ÷ 8 =
  23. 23.Best estimate of 36 × 14? (a) 40 (b) 400 (c) 4000
  24. 24.8 + 7 =
  25. 25.51 − 43 =
  26. 26.You buy a pencil box for ₹25 and pay with a ₹100 note. How much change do you get, in rupees?
  27. 27.84 ÷ 4 =
  28. 28.You buy a storybook for ₹301 and pay with a ₹500 note. How much change do you get, in rupees?
  29. 29.A film starts at 3:10 and ends at 4:10. How many minutes long is the film?
  30. 30.You start your homework at 2:45 and finish at 4:35. How many minutes did you work?
  31. 31.37 + 59 =
  32. 32.123 laddoos are packed in boxes of 8. How many laddoos are left over?
  33. 33.A cricket match starts at 4:40 and the first innings ends at 6:40. How many minutes did the innings last?
  34. 34.58 − 29 =
  35. 35.A train leaves at 6:25 and reaches the next city at 9:10. How many minutes is the journey?
  36. 36.80 ÷ 5 =
  37. 37.You buy a pencil box for ₹35 and a pen for ₹14. You pay with a ₹100 note. How much change do you get, in rupees?
  38. 38.26 + 29 =
  39. 39.A train leaves at 3:25 and reaches the next city at 4:25. How many minutes is the journey?
  40. 40.168 ÷ 4 =

Answer key

  1. 147
  2. 91
  3. 23
  4. 441
  5. 45
  6. 40
  7. 232
  8. 145
  9. 6300
  10. 90
  11. 130
  12. 800
  13. 3
  14. 8
  15. 91
  16. 68
  17. 68
  18. 320
  19. 31
  20. 61
  21. 800
  22. 19
  23. 400
  24. 15
  25. 8
  26. 75
  27. 21
  28. 199
  29. 60
  30. 110
  31. 96
  32. 3
  33. 120
  34. 29
  35. 165
  36. 16
  37. 51
  38. 55
  39. 60
  40. 42

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