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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 335 · 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.Best estimate of 18 × 37? (a) 8000 (b) 800 (c) 80
  2. 2.89 − 59 =
  3. 3.You buy a cricket ball for ₹220 and pay with a ₹500 note. How much change do you get, in rupees?
  4. 4.37 + 67 =
  5. 5.Best estimate of 790 + 513? (a) 1300 (b) 1500 (c) 1100
  6. 6.111 − 80 =
  7. 7.14² =
  8. 8.81 × 5 =
  9. 9.156 ÷ 3 =
  10. 10.You buy a kite for ₹21 and a pen for ₹32. You pay with a ₹100 note. How much change do you get, in rupees?
  11. 11.4 + ? = 10
  12. 12.A film starts at 3:15 and ends at 5:10. How many minutes long is the film?
  13. 13.54 + 61 =
  14. 14.2 + ? = 10
  15. 15.120 ÷ 8 =
  16. 16.You buy a water bottle for ₹61 and pay with a ₹100 note. How much change do you get, in rupees?
  17. 17.7 + ? = 10
  18. 18.303 − 286 =
  19. 19.18² =
  20. 20.You buy a storybook for ₹72 and pay with a ₹100 note. How much change do you get, in rupees?
  21. 21.27 + 26 =
  22. 22.17 + ? = 100
  23. 23.You buy a box of crayons for ₹16 and pay with a ₹100 note. How much change do you get, in rupees?
  24. 24.27 + 6 =
  25. 25.26 + 6 =
  26. 26.73 × 3 =
  27. 27.A train leaves at 3:35 and reaches the next city at 4:25. How many minutes is the journey?
  28. 28.70 + 9 =
  29. 29.You start your homework at 2:10 and finish at 2:50. How many minutes did you work?
  30. 30.232 ÷ 8 =
  31. 31.5% of ₹820 =
  32. 32.You buy a bag of mangoes for ₹40 and a pen for ₹34. You pay with a ₹100 note. How much change do you get, in rupees?
  33. 33.65 × 4 =
  34. 34.A cricket match starts at 1:00 and the first innings ends at 4:20. How many minutes did the innings last?
  35. 35.12 × 8 =
  36. 36.80 − 25 =
  37. 37.218 − 181 =
  38. 38.17 × 8 =
  39. 39.132 ÷ 3 =
  40. 40.32 children stand in rows of 3. How many full rows can they make?

Answer key

  1. 800
  2. 30
  3. 280
  4. 104
  5. 1300
  6. 31
  7. 196
  8. 405
  9. 52
  10. 47
  11. 6
  12. 115
  13. 115
  14. 8
  15. 15
  16. 39
  17. 3
  18. 17
  19. 324
  20. 28
  21. 53
  22. 83
  23. 84
  24. 33
  25. 32
  26. 219
  27. 50
  28. 79
  29. 40
  30. 29
  31. 41
  32. 26
  33. 260
  34. 200
  35. 96
  36. 55
  37. 37
  38. 136
  39. 44
  40. 10

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