← Mixed mental challenge lesson New set →

Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 427 · 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 75 =
  2. 2.9 + 10 =
  3. 3.208 − 180 =
  4. 4.You buy a kite for ₹148 and pay with a ₹500 note. How much change do you get, in rupees?
  5. 5.You buy a kite for ₹407 and pay with a ₹500 note. How much change do you get, in rupees?
  6. 6.26 + 27 =
  7. 7.5 + 8 =
  8. 8.23² =
  9. 9.You buy a kite for ₹395 and pay with a ₹500 note. How much change do you get, in rupees?
  10. 10.88 × 3 =
  11. 11.10% of ₹370 =
  12. 12.14 + 15 =
  13. 13.39 × 4 =
  14. 14.53 + 12 =
  15. 15.46 × 8 =
  16. 16.20 × 4 =
  17. 17.You buy a box of crayons for ₹427 and pay with a ₹500 note. How much change do you get, in rupees?
  18. 18.115 − 86 =
  19. 19.80 + ? = 100
  20. 20.You start your homework at 1:35 and finish at 3:00. How many minutes did you work?
  21. 21.86 × 4 =
  22. 22.15² =
  23. 23.8 + 10 =
  24. 24.6 + 8 =
  25. 25.40 + 88 =
  26. 26.6 + 7 =
  27. 27.Double 84 =
  28. 28.49 + 8 =
  29. 29.3 + ? = 10
  30. 30.85 − 24 =
  31. 31.29 + 28 =
  32. 32.56 − 25 =
  33. 33.54 − 23 =
  34. 34.25% of ₹190 =
  35. 35.144 ÷ 3 =
  36. 36.38 × 8 =
  37. 37.21² =
  38. 38.280 ÷ 8 =
  39. 39.404 + 99 =
  40. 40.55 + 9 =

Answer key

  1. 150
  2. 19
  3. 28
  4. 352
  5. 93
  6. 53
  7. 13
  8. 529
  9. 105
  10. 264
  11. 37
  12. 29
  13. 156
  14. 65
  15. 368
  16. 80
  17. 73
  18. 29
  19. 20
  20. 85
  21. 344
  22. 225
  23. 18
  24. 14
  25. 128
  26. 13
  27. 168
  28. 57
  29. 7
  30. 61
  31. 57
  32. 31
  33. 31
  34. 47.5
  35. 48
  36. 304
  37. 441
  38. 35
  39. 503
  40. 64

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