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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 449 · 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. 1.24 + 26 =
  2. 2.56 + 24 =
  3. 3.46 + 7 =
  4. 4.What is the remainder when 41 is divided by 5?
  5. 5.64 − 23 =
  6. 6.Best estimate of 417 + 262? (a) 900 (b) 700 (c) 500
  7. 7.26 + 34 =
  8. 8.Best estimate of 33 × 27? (a) 900 (b) 90 (c) 9000
  9. 9.662 + 99 =
  10. 10.8 + 7 =
  11. 11.66 laddoos are packed in boxes of 7. How many laddoos are left over?
  12. 12.16 + 18 =
  13. 13.25 children stand in rows of 3. How many full rows can they make?
  14. 14.16 × 4 =
  15. 15.76 ÷ 4 =
  16. 16.You buy a pencil box for ₹34 and a pen for ₹18. You pay with a ₹100 note. How much change do you get, in rupees?
  17. 17.73 + ? = 100
  18. 18.4 + ? = 10
  19. 19.25 × 7 =
  20. 20.88 ÷ 8 =
  21. 21.503 − 480 =
  22. 22.19 × 3 =
  23. 23.23 + ? = 100
  24. 24.10% of ₹310 =
  25. 25.A film starts at 4:30 and ends at 5:25. How many minutes long is the film?
  26. 26.A train leaves at 4:05 and reaches the next city at 5:30. How many minutes is the journey?
  27. 27.A cricket match starts at 6:00 and the first innings ends at 6:40. How many minutes did the innings last?
  28. 28.136 ÷ 4 =
  29. 29.25% of ₹750 =
  30. 30.Best estimate of 93 × 46? (a) 450 (b) 45000 (c) 4500
  31. 31.17² =
  32. 32.You start your homework at 8:35 and finish at 10:55. How many minutes did you work?
  33. 33.You buy a water bottle for ₹39 and a pen for ₹13. You pay with a ₹100 note. How much change do you get, in rupees?
  34. 34.28 + 9 =
  35. 35.You buy a pencil box for ₹233 and pay with a ₹500 note. How much change do you get, in rupees?
  36. 36.248 ÷ 8 =
  37. 37.66 − 17 =
  38. 38.A film starts at 6:40 and ends at 8:15. How many minutes long is the film?
  39. 39.112 ÷ 4 =
  40. 40.564 ÷ 6 =

Answer key

  1. 50
  2. 80
  3. 53
  4. 1
  5. 41
  6. 700
  7. 60
  8. 900
  9. 761
  10. 15
  11. 3
  12. 34
  13. 8
  14. 64
  15. 19
  16. 48
  17. 27
  18. 6
  19. 175
  20. 11
  21. 23
  22. 57
  23. 77
  24. 31
  25. 55
  26. 85
  27. 40
  28. 34
  29. 187.5
  30. 4500
  31. 289
  32. 140
  33. 48
  34. 37
  35. 267
  36. 31
  37. 49
  38. 95
  39. 28
  40. 94

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