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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 861 · 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. 1.101 − 29 =
  2. 2.Half of 110 =
  3. 3.25% of ₹140 =
  4. 4.80 + 85 =
  5. 5.61 + 69 =
  6. 6.50% of ₹770 =
  7. 7.Half of 46 =
  8. 8.You buy a bag of mangoes for ₹262 and pay with a ₹500 note. How much change do you get, in rupees?
  9. 9.428 − 99 =
  10. 10.132 ÷ 6 =
  11. 11.59 − 38 =
  12. 12.219 − 187 =
  13. 13.75 + 7 =
  14. 14.You start your homework at 6:30 and finish at 9:25. How many minutes did you work?
  15. 15.A train leaves at 4:05 and reaches the next city at 4:35. How many minutes is the journey?
  16. 16.276 ÷ 6 =
  17. 17.You buy a notebook for ₹12 and pay with a ₹100 note. How much change do you get, in rupees?
  18. 18.3 + ? = 10
  19. 19.10% of ₹830 =
  20. 20.Best estimate of 16 × 46? (a) 10000 (b) 1000 (c) 100
  21. 21.531 + 99 =
  22. 22.56 + 24 =
  23. 23.85 × 3 =
  24. 24.352 ÷ 4 =
  25. 25.326 − 284 =
  26. 26.63 × 4 =
  27. 27.28 + 29 =
  28. 28.315 ÷ 9 =
  29. 29.9 + 10 =
  30. 30.1008 − 975 =
  31. 31.27 + 7 =
  32. 32.Best estimate of 846 + 717? (a) 1500 (b) 1700 (c) 1300
  33. 33.140 ÷ 5 =
  34. 34.68 − 35 =
  35. 35.25% of ₹370 =
  36. 36.392 ÷ 7 =
  37. 37.48 + ? = 100
  38. 38.63 + 51 =
  39. 39.What is the remainder when 67 is divided by 6?
  40. 40.53 − 26 =

Answer key

  1. 72
  2. 55
  3. 35
  4. 165
  5. 130
  6. 385
  7. 23
  8. 238
  9. 329
  10. 22
  11. 21
  12. 32
  13. 82
  14. 175
  15. 30
  16. 46
  17. 88
  18. 7
  19. 83
  20. 1000
  21. 630
  22. 80
  23. 255
  24. 88
  25. 42
  26. 252
  27. 57
  28. 35
  29. 19
  30. 33
  31. 34
  32. 1500
  33. 28
  34. 33
  35. 92.5
  36. 56
  37. 52
  38. 114
  39. 1
  40. 27

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