← Mixed mental challenge lesson New set →

Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 447 · 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. 1.38 × 8 =
  2. 2.127 − 76 =
  3. 3.You buy a water bottle for ₹221 and pay with a ₹500 note. How much change do you get, in rupees?
  4. 4.72 − 19 =
  5. 5.52 − 15 =
  6. 6.24 + 25 =
  7. 7.52 − 34 =
  8. 8.21 + 71 =
  9. 9.15² =
  10. 10.Half of 144 =
  11. 11.75 + 9 =
  12. 12.12² =
  13. 13.Double 66 =
  14. 14.205 − 189 =
  15. 15.176 ÷ 8 =
  16. 16.216 ÷ 8 =
  17. 17.224 ÷ 4 =
  18. 18.50% of ₹710 =
  19. 19.156 ÷ 4 =
  20. 20.10% of ₹100 =
  21. 21.10 + 11 =
  22. 22.Half of 158 =
  23. 23.Best estimate of 548 + 832? (a) 1300 (b) 1500 (c) 1100
  24. 24.37 + 8 =
  25. 25.366 ÷ 6 =
  26. 26.27 + ? = 100
  27. 27.93 × 9 =
  28. 28.5 + ? = 10
  29. 29.You buy a bag of mangoes for ₹198 and pay with a ₹500 note. How much change do you get, in rupees?
  30. 30.66 − 51 =
  31. 31.21² =
  32. 32.A film starts at 3:35 and ends at 4:45. How many minutes long is the film?
  33. 33.49 + 61 =
  34. 34.5% of ₹730 =
  35. 35.10% of ₹170 =
  36. 36.5% of ₹310 =
  37. 37.76 × 4 =
  38. 38.12 × 3 =
  39. 39.You buy a storybook for ₹273 and pay with a ₹500 note. How much change do you get, in rupees?
  40. 40.53 × 4 =

Answer key

  1. 304
  2. 51
  3. 279
  4. 53
  5. 37
  6. 49
  7. 18
  8. 92
  9. 225
  10. 72
  11. 84
  12. 144
  13. 132
  14. 16
  15. 22
  16. 27
  17. 56
  18. 355
  19. 39
  20. 10
  21. 21
  22. 79
  23. 1300
  24. 45
  25. 61
  26. 73
  27. 837
  28. 5
  29. 302
  30. 15
  31. 441
  32. 70
  33. 110
  34. 36.5
  35. 17
  36. 15.5
  37. 304
  38. 36
  39. 227
  40. 212

Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths