← Mixed mental challenge lesson New set →

Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 764 · 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. 1.15 × 9 =
  2. 2.A cricket match starts at 6:15 and the first innings ends at 6:45. How many minutes did the innings last?
  3. 3.9 + ? = 10
  4. 4.65 + 6 =
  5. 5.25% of ₹170 =
  6. 6.1015 − 975 =
  7. 7.102 − 77 =
  8. 8.63 + ? = 100
  9. 9.What is the remainder when 41 is divided by 4?
  10. 10.25² =
  11. 11.77 + 7 =
  12. 12.15² =
  13. 13.12 + 13 =
  14. 14.514 − 488 =
  15. 15.80 + 18 =
  16. 16.82 − 17 =
  17. 17.10% of ₹640 =
  18. 18.50% of ₹680 =
  19. 19.248 ÷ 8 =
  20. 20.9 + 10 =
  21. 21.A film starts at 5:50 and ends at 8:20. How many minutes long is the film?
  22. 22.261 ÷ 9 =
  23. 23.77 − 21 =
  24. 24.Best estimate of 14 × 16? (a) 200 (b) 2000 (c) 20
  25. 25.73 − 17 =
  26. 26.216 ÷ 8 =
  27. 27.35 × 4 =
  28. 28.69 + 82 =
  29. 29.10% of ₹710 =
  30. 30.69 − 32 =
  31. 31.87 + 61 =
  32. 32.9 + 9 =
  33. 33.27 + 8 =
  34. 34.156 ÷ 6 =
  35. 35.71 × 4 =
  36. 36.322 − 286 =
  37. 37.12² =
  38. 38.What is the remainder when 38 is divided by 4?
  39. 39.783 ÷ 9 =
  40. 40.206 − 186 =

Answer key

  1. 135
  2. 30
  3. 1
  4. 71
  5. 42.5
  6. 40
  7. 25
  8. 37
  9. 1
  10. 625
  11. 84
  12. 225
  13. 25
  14. 26
  15. 98
  16. 65
  17. 64
  18. 340
  19. 31
  20. 19
  21. 150
  22. 29
  23. 56
  24. 200
  25. 56
  26. 27
  27. 140
  28. 151
  29. 71
  30. 37
  31. 148
  32. 18
  33. 35
  34. 26
  35. 284
  36. 36
  37. 144
  38. 2
  39. 87
  40. 20

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