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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 907 · 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.What is the remainder when 46 is divided by 5?
  2. 2.17 + 16 =
  3. 3.116 ÷ 4 =
  4. 4.189 ÷ 9 =
  5. 5.15 + 7 =
  6. 6.You buy a box of crayons for ₹16 and pay with a ₹100 note. How much change do you get, in rupees?
  7. 7.What is the remainder when 85 is divided by 6?
  8. 8.287 ÷ 7 =
  9. 9.What is the remainder when 31 is divided by 3?
  10. 10.118 children stand in rows of 8. How many full rows can they make?
  11. 11.136 ÷ 8 =
  12. 12.Best estimate of 181 + 230? (a) 600 (b) 200 (c) 400
  13. 13.18 + 17 =
  14. 14.24 + 23 =
  15. 15.8 + ? = 10
  16. 16.72 ÷ 4 =
  17. 17.70 + ? = 100
  18. 18.127 − 94 =
  19. 19.74 + 88 =
  20. 20.50 + ? = 100
  21. 21.A cricket match starts at 7:10 and the first innings ends at 8:05. How many minutes did the innings last?
  22. 22.2 + ? = 10
  23. 23.14² =
  24. 24.30 + 31 =
  25. 25.378 ÷ 9 =
  26. 26.80 ÷ 4 =
  27. 27.56 − 29 =
  28. 28.Best estimate of 88 × 37? (a) 3600 (b) 36000 (c) 360
  29. 29.Best estimate of 333 + 322? (a) 400 (b) 600 (c) 800
  30. 30.25² =
  31. 31.54 − 31 =
  32. 32.56 − 17 =
  33. 33.226 − 190 =
  34. 34.7 + 7 =
  35. 35.55 laddoos are packed in boxes of 6. How many laddoos are left over?
  36. 36.88 − 29 =
  37. 37.89 × 4 =
  38. 38.16² =
  39. 39.89 + 33 =
  40. 40.You buy a notebook for ₹29 and pay with a ₹100 note. How much change do you get, in rupees?

Answer key

  1. 1
  2. 33
  3. 29
  4. 21
  5. 22
  6. 84
  7. 1
  8. 41
  9. 1
  10. 14
  11. 17
  12. 400
  13. 35
  14. 47
  15. 2
  16. 18
  17. 30
  18. 33
  19. 162
  20. 50
  21. 55
  22. 8
  23. 196
  24. 61
  25. 42
  26. 20
  27. 27
  28. 3600
  29. 600
  30. 625
  31. 23
  32. 39
  33. 36
  34. 14
  35. 1
  36. 59
  37. 356
  38. 256
  39. 122
  40. 71

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