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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 589 · 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.Double 57 =
  2. 2.31 × 9 =
  3. 3.25% of ₹100 =
  4. 4.Half of 118 =
  5. 5.46 + 7 =
  6. 6.24 × 8 =
  7. 7.70 − 61 =
  8. 8.47 + 4 =
  9. 9.105 − 81 =
  10. 10.72 − 17 =
  11. 11.21² =
  12. 12.61 × 3 =
  13. 13.79 − 9 =
  14. 14.28 children stand in rows of 3. How many full rows can they make?
  15. 15.50% of ₹850 =
  16. 16.Double 51 =
  17. 17.34 × 8 =
  18. 18.31 × 8 =
  19. 19.50% of ₹270 =
  20. 20.123 − 96 =
  21. 21.49 − 29 =
  22. 22.5% of ₹520 =
  23. 23.1005 − 988 =
  24. 24.160 ÷ 8 =
  25. 25.61 × 8 =
  26. 26.22 + 88 =
  27. 27.45 + 19 =
  28. 28.84 ÷ 6 =
  29. 29.A film starts at 3:00 and ends at 4:20. How many minutes long is the film?
  30. 30.26 × 8 =
  31. 31.16 children stand in rows of 3. How many full rows can they make?
  32. 32.30 × 4 =
  33. 33.28 + 51 =
  34. 34.Best estimate of 38 × 16? (a) 800 (b) 80 (c) 8000
  35. 35.205 − 181 =
  36. 36.You buy a cricket ball for ₹346 and pay with a ₹500 note. How much change do you get, in rupees?
  37. 37.11 + 12 =
  38. 38.34 × 4 =
  39. 39.27 + 7 =
  40. 40.A train leaves at 2:10 and reaches the next city at 4:15. How many minutes is the journey?

Answer key

  1. 114
  2. 279
  3. 25
  4. 59
  5. 53
  6. 192
  7. 9
  8. 51
  9. 24
  10. 55
  11. 441
  12. 183
  13. 70
  14. 9
  15. 425
  16. 102
  17. 272
  18. 248
  19. 135
  20. 27
  21. 20
  22. 26
  23. 17
  24. 20
  25. 488
  26. 110
  27. 64
  28. 14
  29. 80
  30. 208
  31. 5
  32. 120
  33. 79
  34. 800
  35. 24
  36. 154
  37. 23
  38. 136
  39. 34
  40. 125

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