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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 626 · 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.A film starts at 6:25 and ends at 7:05. How many minutes long is the film?
  2. 2.71 + 27 =
  3. 3.18 + 4 =
  4. 4.71 + 57 =
  5. 5.67 laddoos are packed in boxes of 5. How many laddoos are left over?
  6. 6.You buy a notebook for ₹62 and pay with a ₹100 note. How much change do you get, in rupees?
  7. 7.95 ÷ 5 =
  8. 8.A cricket match starts at 3:45 and the first innings ends at 5:10. How many minutes did the innings last?
  9. 9.43 × 7 =
  10. 10.Best estimate of 48 × 48? (a) 2500 (b) 250 (c) 25000
  11. 11.Double 55 =
  12. 12.1 + ? = 10
  13. 13.Best estimate of 29 × 31? (a) 90 (b) 9000 (c) 900
  14. 14.27² =
  15. 15.You buy a storybook for ₹73 and pay with a ₹100 note. How much change do you get, in rupees?
  16. 16.344 ÷ 4 =
  17. 17.522 − 488 =
  18. 18.96 − 12 =
  19. 19.19² =
  20. 20.34 × 4 =
  21. 21.10% of ₹710 =
  22. 22.16 + 15 =
  23. 23.What is the remainder when 84 is divided by 9?
  24. 24.82 + 14 =
  25. 25.12 + 13 =
  26. 26.34 − 19 =
  27. 27.29² =
  28. 28.Best estimate of 56 × 78? (a) 480 (b) 4800 (c) 48000
  29. 29.You start your homework at 8:25 and finish at 10:55. How many minutes did you work?
  30. 30.6 + 7 =
  31. 31.Best estimate of 614 + 216? (a) 600 (b) 1000 (c) 800
  32. 32.11 + 13 =
  33. 33.67 + 75 =
  34. 34.2 + ? = 10
  35. 35.12² =
  36. 36.27 × 9 =
  37. 37.9 + 11 =
  38. 38.47 laddoos are packed in boxes of 5. How many laddoos are left over?
  39. 39.89 + 76 =
  40. 40.70 − 38 =

Answer key

  1. 40
  2. 98
  3. 22
  4. 128
  5. 2
  6. 38
  7. 19
  8. 85
  9. 301
  10. 2500
  11. 110
  12. 9
  13. 900
  14. 729
  15. 27
  16. 86
  17. 34
  18. 84
  19. 361
  20. 136
  21. 71
  22. 31
  23. 3
  24. 96
  25. 25
  26. 15
  27. 841
  28. 4800
  29. 150
  30. 13
  31. 800
  32. 24
  33. 142
  34. 8
  35. 144
  36. 243
  37. 20
  38. 2
  39. 165
  40. 32

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