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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 210 · 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. 1.9 + ? = 10
  2. 2.You start your homework at 7:15 and finish at 8:05. How many minutes did you work?
  3. 3.10 + 12 =
  4. 4.25% of ₹700 =
  5. 5.27 + 5 =
  6. 6.110 − 92 =
  7. 7.18 + 17 =
  8. 8.4 + ? = 10
  9. 9.30 + 29 =
  10. 10.502 − 493 =
  11. 11.21² =
  12. 12.79 + ? = 100
  13. 13.27 × 4 =
  14. 14.25% of ₹130 =
  15. 15.48 + 29 =
  16. 16.65 × 7 =
  17. 17.22 × 4 =
  18. 18.12 + 11 =
  19. 19.A film starts at 7:30 and ends at 8:00. How many minutes long is the film?
  20. 20.25% of ₹290 =
  21. 21.57 ÷ 3 =
  22. 22.Double 99 =
  23. 23.A train leaves at 2:15 and reaches the next city at 5:20. How many minutes is the journey?
  24. 24.You buy a bag of mangoes for ₹42 and a pen for ₹44. You pay with a ₹100 note. How much change do you get, in rupees?
  25. 25.37 children stand in rows of 4. How many full rows can they make?
  26. 26.28² =
  27. 27.27 + 28 =
  28. 28.39 + 8 =
  29. 29.58 − 19 =
  30. 30.81 children stand in rows of 7. How many full rows can they make?
  31. 31.30 + 32 =
  32. 32.You buy a water bottle for ₹45 and a pen for ₹33. You pay with a ₹100 note. How much change do you get, in rupees?
  33. 33.Best estimate of 77 × 67? (a) 5600 (b) 56000 (c) 560
  34. 34.232 ÷ 4 =
  35. 35.66 − 29 =
  36. 36.27² =
  37. 37.11² =
  38. 38.164 ÷ 4 =
  39. 39.16 + 17 =
  40. 40.99 × 4 =

Answer key

  1. 1
  2. 50
  3. 22
  4. 175
  5. 32
  6. 18
  7. 35
  8. 6
  9. 59
  10. 9
  11. 441
  12. 21
  13. 108
  14. 32.5
  15. 77
  16. 455
  17. 88
  18. 23
  19. 30
  20. 72.5
  21. 19
  22. 198
  23. 185
  24. 14
  25. 9
  26. 784
  27. 55
  28. 47
  29. 39
  30. 11
  31. 62
  32. 22
  33. 5600
  34. 58
  35. 37
  36. 729
  37. 121
  38. 41
  39. 33
  40. 396

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