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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 572 · 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 47 × 46? (a) 2500 (b) 250 (c) 25000
  2. 2.94 − 58 =
  3. 3.29² =
  4. 4.82 + 31 =
  5. 5.A film starts at 3:10 and ends at 4:20. How many minutes long is the film?
  6. 6.62 + 24 =
  7. 7.58 + 6 =
  8. 8.A film starts at 1:10 and ends at 2:45. How many minutes long is the film?
  9. 9.Double 92 =
  10. 10.67 children stand in rows of 5. How many full rows can they make?
  11. 11.128 ÷ 4 =
  12. 12.A cricket match starts at 7:40 and the first innings ends at 10:05. How many minutes did the innings last?
  13. 13.30 + 32 =
  14. 14.Best estimate of 880 + 507? (a) 1200 (b) 1600 (c) 1400
  15. 15.792 − 99 =
  16. 16.27² =
  17. 17.5% of ₹430 =
  18. 18.You buy a water bottle for ₹73 and pay with a ₹100 note. How much change do you get, in rupees?
  19. 19.82 + 71 =
  20. 20.783 ÷ 9 =
  21. 21.366 ÷ 6 =
  22. 22.71 + 83 =
  23. 23.49 + 9 =
  24. 24.A cricket match starts at 1:30 and the first innings ends at 2:40. How many minutes did the innings last?
  25. 25.44 × 4 =
  26. 26.5% of ₹340 =
  27. 27.You buy a water bottle for ₹27 and pay with a ₹100 note. How much change do you get, in rupees?
  28. 28.61 + 34 =
  29. 29.288 ÷ 8 =
  30. 30.315 ÷ 9 =
  31. 31.34 × 8 =
  32. 32.71 − 36 =
  33. 33.You start your homework at 5:20 and finish at 6:40. How many minutes did you work?
  34. 34.Best estimate of 875 + 345? (a) 1000 (b) 1200 (c) 1400
  35. 35.10% of ₹150 =
  36. 36.116 ÷ 4 =
  37. 37.5% of ₹230 =
  38. 38.25% of ₹180 =
  39. 39.You start your homework at 6:35 and finish at 9:50. How many minutes did you work?
  40. 40.43 children stand in rows of 6. How many full rows can they make?

Answer key

  1. 2500
  2. 36
  3. 841
  4. 113
  5. 70
  6. 86
  7. 64
  8. 95
  9. 184
  10. 13
  11. 32
  12. 145
  13. 62
  14. 1400
  15. 693
  16. 729
  17. 21.5
  18. 27
  19. 153
  20. 87
  21. 61
  22. 154
  23. 58
  24. 70
  25. 176
  26. 17
  27. 73
  28. 95
  29. 36
  30. 35
  31. 272
  32. 35
  33. 80
  34. 1200
  35. 15
  36. 29
  37. 11.5
  38. 45
  39. 195
  40. 7

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