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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 401 · 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. 1.206 − 186 =
  2. 2.A train leaves at 7:00 and reaches the next city at 7:45. How many minutes is the journey?
  3. 3.50% of ₹290 =
  4. 4.88 − 45 =
  5. 5.504 ÷ 8 =
  6. 6.76 + 8 =
  7. 7.Double 42 =
  8. 8.Half of 110 =
  9. 9.Best estimate of 33 × 46? (a) 15000 (b) 1500 (c) 150
  10. 10.22 + ? = 100
  11. 11.Double 43 =
  12. 12.40 + 53 =
  13. 13.15 × 3 =
  14. 14.1011 − 979 =
  15. 15.You buy a storybook for ₹26 and a pen for ₹23. You pay with a ₹100 note. How much change do you get, in rupees?
  16. 16.212 − 190 =
  17. 17.425 ÷ 5 =
  18. 18.5% of ₹700 =
  19. 19.67 − 24 =
  20. 20.314 − 283 =
  21. 21.Half of 132 =
  22. 22.2 + ? = 10
  23. 23.36 × 4 =
  24. 24.39 + 29 =
  25. 25.65 − 33 =
  26. 26.280 ÷ 8 =
  27. 27.15 × 8 =
  28. 28.13 + 15 =
  29. 29.Double 84 =
  30. 30.86 × 5 =
  31. 31.7 + ? = 10
  32. 32.72 × 3 =
  33. 33.244 ÷ 4 =
  34. 34.22 + 21 =
  35. 35.296 ÷ 8 =
  36. 36.50 + 31 =
  37. 37.9 + 6 =
  38. 38.41 children stand in rows of 5. How many full rows can they make?
  39. 39.523 − 493 =
  40. 40.65 + 9 =

Answer key

  1. 20
  2. 45
  3. 145
  4. 43
  5. 63
  6. 84
  7. 84
  8. 55
  9. 1500
  10. 78
  11. 86
  12. 93
  13. 45
  14. 32
  15. 51
  16. 22
  17. 85
  18. 35
  19. 43
  20. 31
  21. 66
  22. 8
  23. 144
  24. 68
  25. 32
  26. 35
  27. 120
  28. 28
  29. 168
  30. 430
  31. 3
  32. 216
  33. 61
  34. 43
  35. 37
  36. 81
  37. 15
  38. 8
  39. 30
  40. 74

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