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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 526 · 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. 1.27 + 26 =
  2. 2.76 laddoos are packed in boxes of 8. How many laddoos are left over?
  3. 3.10% of ₹450 =
  4. 4.Best estimate of 37 × 93? (a) 36000 (b) 360 (c) 3600
  5. 5.You buy a notebook for ₹43 and pay with a ₹100 note. How much change do you get, in rupees?
  6. 6.You buy a cricket ball for ₹34 and pay with a ₹100 note. How much change do you get, in rupees?
  7. 7.You buy a cricket ball for ₹21 and pay with a ₹100 note. How much change do you get, in rupees?
  8. 8.What is the remainder when 22 is divided by 3?
  9. 9.29 + 61 =
  10. 10.95 − 29 =
  11. 11.32 + 39 =
  12. 12.A train leaves at 4:45 and reaches the next city at 6:00. How many minutes is the journey?
  13. 13.210 − 193 =
  14. 14.66 + 7 =
  15. 15.69 × 4 =
  16. 16.13 children stand in rows of 3. How many full rows can they make?
  17. 17.29 × 3 =
  18. 18.28 laddoos are packed in boxes of 6. How many laddoos are left over?
  19. 19.57 + 6 =
  20. 20.5% of ₹150 =
  21. 21.83 + 66 =
  22. 22.You buy a water bottle for ₹202 and pay with a ₹500 note. How much change do you get, in rupees?
  23. 23.71 − 9 =
  24. 24.77 − 9 =
  25. 25.73 children stand in rows of 5. How many full rows can they make?
  26. 26.40 + 13 =
  27. 27.50% of ₹630 =
  28. 28.328 − 288 =
  29. 29.26 × 9 =
  30. 30.73 + 47 =
  31. 31.Best estimate of 88 × 24? (a) 180 (b) 1800 (c) 18000
  32. 32.64 + ? = 100
  33. 33.You buy a pencil box for ₹30 and a pen for ₹40. You pay with a ₹100 note. How much change do you get, in rupees?
  34. 34.Best estimate of 68 × 19? (a) 140 (b) 1400 (c) 14000
  35. 35.24 + 23 =
  36. 36.22 + 21 =
  37. 37.55 + 9 =
  38. 38.66 + 19 =
  39. 39.24 + 9 =
  40. 40.Best estimate of 645 + 858? (a) 1300 (b) 1500 (c) 1700

Answer key

  1. 53
  2. 4
  3. 45
  4. 3600
  5. 57
  6. 66
  7. 79
  8. 1
  9. 90
  10. 66
  11. 71
  12. 75
  13. 17
  14. 73
  15. 276
  16. 4
  17. 87
  18. 4
  19. 63
  20. 7.5
  21. 149
  22. 298
  23. 62
  24. 68
  25. 14
  26. 53
  27. 315
  28. 40
  29. 234
  30. 120
  31. 1800
  32. 36
  33. 30
  34. 1400
  35. 47
  36. 43
  37. 64
  38. 85
  39. 33
  40. 1500

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