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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 831 · 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. 1.18² =
  2. 2.88 + 73 =
  3. 3.1 + ? = 10
  4. 4.You buy a notebook for ₹279 and pay with a ₹500 note. How much change do you get, in rupees?
  5. 5.156 ÷ 4 =
  6. 6.You buy a pencil box for ₹80 and pay with a ₹100 note. How much change do you get, in rupees?
  7. 7.50% of ₹290 =
  8. 8.A train leaves at 8:50 and reaches the next city at 11:55. How many minutes is the journey?
  9. 9.48 + 9 =
  10. 10.4 + ? = 10
  11. 11.32 × 4 =
  12. 12.54 laddoos are packed in boxes of 4. How many laddoos are left over?
  13. 13.12² =
  14. 14.22 + 9 =
  15. 15.25 + ? = 100
  16. 16.3 + ? = 10
  17. 17.63 − 15 =
  18. 18.67 × 4 =
  19. 19.69 × 5 =
  20. 20.184 ÷ 8 =
  21. 21.27 − 19 =
  22. 22.106 − 94 =
  23. 23.You buy a bag of mangoes for ₹23 and a pen for ₹32. You pay with a ₹100 note. How much change do you get, in rupees?
  24. 24.What is the remainder when 75 is divided by 7?
  25. 25.What is the remainder when 36 is divided by 5?
  26. 26.A cricket match starts at 4:00 and the first innings ends at 5:50. How many minutes did the innings last?
  27. 27.87 − 60 =
  28. 28.17 + 4 =
  29. 29.Best estimate of 77 × 28? (a) 2400 (b) 240 (c) 24000
  30. 30.A train leaves at 8:10 and reaches the next city at 10:15. How many minutes is the journey?
  31. 31.34 children stand in rows of 4. How many full rows can they make?
  32. 32.48 + 4 =
  33. 33.5% of ₹550 =
  34. 34.19 + 21 =
  35. 35.43 laddoos are packed in boxes of 4. How many laddoos are left over?
  36. 36.A train leaves at 5:00 and reaches the next city at 7:10. How many minutes is the journey?
  37. 37.60 + 17 =
  38. 38.47 + ? = 100
  39. 39.39 + 6 =
  40. 40.A film starts at 1:50 and ends at 4:05. How many minutes long is the film?

Answer key

  1. 324
  2. 161
  3. 9
  4. 221
  5. 39
  6. 20
  7. 145
  8. 185
  9. 57
  10. 6
  11. 128
  12. 2
  13. 144
  14. 31
  15. 75
  16. 7
  17. 48
  18. 268
  19. 345
  20. 23
  21. 8
  22. 12
  23. 45
  24. 5
  25. 1
  26. 110
  27. 27
  28. 21
  29. 2400
  30. 125
  31. 8
  32. 52
  33. 27.5
  34. 40
  35. 3
  36. 130
  37. 77
  38. 53
  39. 45
  40. 135

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