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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 60 · 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 96 × 56? (a) 6000 (b) 600 (c) 60000
  2. 2.35 + 14 =
  3. 3.40 + 19 =
  4. 4.70 + 9 =
  5. 5.61 + 29 =
  6. 6.28 + 29 =
  7. 7.276 ÷ 3 =
  8. 8.61 − 18 =
  9. 9.13² =
  10. 10.25² =
  11. 11.13 × 8 =
  12. 12.57 × 9 =
  13. 13.58 − 25 =
  14. 14.44 laddoos are packed in boxes of 3. How many laddoos are left over?
  15. 15.210 − 183 =
  16. 16.65 × 4 =
  17. 17.12 + 14 =
  18. 18.You buy a pencil box for ₹75 and pay with a ₹100 note. How much change do you get, in rupees?
  19. 19.12 + 11 =
  20. 20.26 + 12 =
  21. 21.438 ÷ 6 =
  22. 22.25% of ₹300 =
  23. 23.55 + 19 =
  24. 24.27 + 29 =
  25. 25.8 + 9 =
  26. 26.8 + ? = 10
  27. 27.Double 84 =
  28. 28.81 − 72 =
  29. 29.69 + 3 =
  30. 30.Best estimate of 71 × 56? (a) 42000 (b) 420 (c) 4200
  31. 31.10% of ₹790 =
  32. 32.280 ÷ 8 =
  33. 33.23² =
  34. 34.63 × 4 =
  35. 35.15 + 7 =
  36. 36.67 − 36 =
  37. 37.You buy a kite for ₹30 and a pen for ₹21. You pay with a ₹100 note. How much change do you get, in rupees?
  38. 38.A train leaves at 4:55 and reaches the next city at 7:10. How many minutes is the journey?
  39. 39.38 + 44 =
  40. 40.Half of 132 =

Answer key

  1. 6000
  2. 49
  3. 59
  4. 79
  5. 90
  6. 57
  7. 92
  8. 43
  9. 169
  10. 625
  11. 104
  12. 513
  13. 33
  14. 2
  15. 27
  16. 260
  17. 26
  18. 25
  19. 23
  20. 38
  21. 73
  22. 75
  23. 74
  24. 56
  25. 17
  26. 2
  27. 168
  28. 9
  29. 72
  30. 4200
  31. 79
  32. 35
  33. 529
  34. 252
  35. 22
  36. 31
  37. 49
  38. 135
  39. 82
  40. 66

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