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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 506 · 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. 1.45 + 6 =
  2. 2.84 − 69 =
  3. 3.11² =
  4. 4.5% of ₹840 =
  5. 5.168 ÷ 8 =
  6. 6.44 × 4 =
  7. 7.26 + 28 =
  8. 8.24 + 25 =
  9. 9.114 children stand in rows of 8. How many full rows can they make?
  10. 10.Half of 64 =
  11. 11.22 + ? = 100
  12. 12.10% of ₹200 =
  13. 13.316 − 296 =
  14. 14.414 ÷ 9 =
  15. 15.82 + 27 =
  16. 16.144 ÷ 8 =
  17. 17.21 + 29 =
  18. 18.26² =
  19. 19.120 ÷ 8 =
  20. 20.95 − 18 =
  21. 21.13 × 8 =
  22. 22.You buy a kite for ₹12 and pay with a ₹100 note. How much change do you get, in rupees?
  23. 23.218 − 196 =
  24. 24.76 − 37 =
  25. 25.50% of ₹180 =
  26. 26.57 − 44 =
  27. 27.71 × 4 =
  28. 28.224 ÷ 4 =
  29. 29.57 + 48 =
  30. 30.68 − 31 =
  31. 31.17 + 7 =
  32. 32.98 − 53 =
  33. 33.A cricket match starts at 1:50 and the first innings ends at 2:35. How many minutes did the innings last?
  34. 34.65 + 6 =
  35. 35.You buy a box of crayons for ₹23 and a pen for ₹34. You pay with a ₹100 note. How much change do you get, in rupees?
  36. 36.A film starts at 2:55 and ends at 3:45. How many minutes long is the film?
  37. 37.356 ÷ 4 =
  38. 38.You buy a box of crayons for ₹53 and pay with a ₹100 note. How much change do you get, in rupees?
  39. 39.188 ÷ 4 =
  40. 40.48 + 74 =

Answer key

  1. 51
  2. 15
  3. 121
  4. 42
  5. 21
  6. 176
  7. 54
  8. 49
  9. 14
  10. 32
  11. 78
  12. 20
  13. 20
  14. 46
  15. 109
  16. 18
  17. 50
  18. 676
  19. 15
  20. 77
  21. 104
  22. 88
  23. 22
  24. 39
  25. 90
  26. 13
  27. 284
  28. 56
  29. 105
  30. 37
  31. 24
  32. 45
  33. 45
  34. 71
  35. 43
  36. 50
  37. 89
  38. 47
  39. 47
  40. 122

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