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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 355 · 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. 1.78 − 33 =
  2. 2.342 + 99 =
  3. 3.109 − 64 =
  4. 4.171 − 99 =
  5. 5.19 + 18 =
  6. 6.55 + 9 =
  7. 7.1015 − 991 =
  8. 8.63 − 38 =
  9. 9.A cricket match starts at 4:15 and the first innings ends at 5:30. How many minutes did the innings last?
  10. 10.35 + ? = 100
  11. 11.Double 39 =
  12. 12.200 ÷ 8 =
  13. 13.What is the remainder when 39 is divided by 5?
  14. 14.7 + ? = 10
  15. 15.26 + 9 =
  16. 16.You buy a notebook for ₹365 and pay with a ₹500 note. How much change do you get, in rupees?
  17. 17.10% of ₹190 =
  18. 18.123 ÷ 3 =
  19. 19.A film starts at 4:30 and ends at 6:20. How many minutes long is the film?
  20. 20.25% of ₹480 =
  21. 21.Double 17 =
  22. 22.84 ÷ 4 =
  23. 23.22 + 25 =
  24. 24.85 − 44 =
  25. 25.90 children stand in rows of 7. How many full rows can they make?
  26. 26.You buy a pencil box for ₹345 and pay with a ₹500 note. How much change do you get, in rupees?
  27. 27.20 + 22 =
  28. 28.236 ÷ 4 =
  29. 29.33 × 8 =
  30. 30.16 + 15 =
  31. 31.41 × 6 =
  32. 32.10% of ₹80 =
  33. 33.65 − 16 =
  34. 34.55 + ? = 100
  35. 35.14 + 16 =
  36. 36.You buy a water bottle for ₹37 and a pen for ₹11. You pay with a ₹100 note. How much change do you get, in rupees?
  37. 37.Double 57 =
  38. 38.371 ÷ 7 =
  39. 39.85 + ? = 100
  40. 40.Double 36 =

Answer key

  1. 45
  2. 441
  3. 45
  4. 72
  5. 37
  6. 64
  7. 24
  8. 25
  9. 75
  10. 65
  11. 78
  12. 25
  13. 4
  14. 3
  15. 35
  16. 135
  17. 19
  18. 41
  19. 110
  20. 120
  21. 34
  22. 21
  23. 47
  24. 41
  25. 12
  26. 155
  27. 42
  28. 59
  29. 264
  30. 31
  31. 246
  32. 8
  33. 49
  34. 45
  35. 30
  36. 52
  37. 114
  38. 53
  39. 15
  40. 72

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