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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 558 · 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. 1.29 + 22 =
  2. 2.50% of ₹830 =
  3. 3.Best estimate of 731 + 220? (a) 1100 (b) 700 (c) 900
  4. 4.26² =
  5. 5.A film starts at 5:15 and ends at 8:30. How many minutes long is the film?
  6. 6.48 + 24 =
  7. 7.What is the remainder when 95 is divided by 7?
  8. 8.77 + ? = 100
  9. 9.10 + 11 =
  10. 10.61 × 5 =
  11. 11.27 × 7 =
  12. 12.You buy a water bottle for ₹83 and pay with a ₹100 note. How much change do you get, in rupees?
  13. 13.73 + ? = 100
  14. 14.46 + ? = 100
  15. 15.You buy a pencil box for ₹39 and a pen for ₹11. You pay with a ₹100 note. How much change do you get, in rupees?
  16. 16.58 − 36 =
  17. 17.64 + ? = 100
  18. 18.67 − 18 =
  19. 19.24 children stand in rows of 5. How many full rows can they make?
  20. 20.11 + 10 =
  21. 21.48 ÷ 4 =
  22. 22.26 + 78 =
  23. 23.62 − 29 =
  24. 24.38 + 24 =
  25. 25.136 ÷ 8 =
  26. 26.5 + 8 =
  27. 27.78 + ? = 100
  28. 28.44 children stand in rows of 7. How many full rows can they make?
  29. 29.24 + 23 =
  30. 30.5% of ₹470 =
  31. 31.2 + ? = 10
  32. 32.248 ÷ 8 =
  33. 33.25 + 34 =
  34. 34.A train leaves at 7:15 and reaches the next city at 8:15. How many minutes is the journey?
  35. 35.65 − 33 =
  36. 36.7 + 9 =
  37. 37.Double 57 =
  38. 38.39 − 29 =
  39. 39.34 − 29 =
  40. 40.136 ÷ 4 =

Answer key

  1. 51
  2. 415
  3. 900
  4. 676
  5. 195
  6. 72
  7. 4
  8. 23
  9. 21
  10. 305
  11. 189
  12. 17
  13. 27
  14. 54
  15. 50
  16. 22
  17. 36
  18. 49
  19. 4
  20. 21
  21. 12
  22. 104
  23. 33
  24. 62
  25. 17
  26. 13
  27. 22
  28. 6
  29. 47
  30. 23.5
  31. 8
  32. 31
  33. 59
  34. 60
  35. 32
  36. 16
  37. 114
  38. 10
  39. 5
  40. 34

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