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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 961 · 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. 1.22 + 23 =
  2. 2.116 laddoos are packed in boxes of 9. How many laddoos are left over?
  3. 3.124 − 79 =
  4. 4.Best estimate of 359 + 770? (a) 1200 (b) 1000 (c) 1400
  5. 5.96 ÷ 4 =
  6. 6.21 laddoos are packed in boxes of 4. How many laddoos are left over?
  7. 7.21² =
  8. 8.75 + 6 =
  9. 9.What is the remainder when 62 is divided by 4?
  10. 10.23 + 25 =
  11. 11.45 + 29 =
  12. 12.A film starts at 5:30 and ends at 8:30. How many minutes long is the film?
  13. 13.Best estimate of 84 × 69? (a) 560 (b) 5600 (c) 56000
  14. 14.58 + 45 =
  15. 15.Best estimate of 266 + 560? (a) 900 (b) 1100 (c) 700
  16. 16.60 ÷ 4 =
  17. 17.84 − 74 =
  18. 18.25² =
  19. 19.28 + 30 =
  20. 20.What is the remainder when 34 is divided by 3?
  21. 21.52 ÷ 4 =
  22. 22.34 × 8 =
  23. 23.309 − 296 =
  24. 24.59 + 2 =
  25. 25.57 + 89 =
  26. 26.25 + 6 =
  27. 27.64 − 47 =
  28. 28.Best estimate of 94 × 81? (a) 72000 (b) 720 (c) 7200
  29. 29.26 × 4 =
  30. 30.73 − 13 =
  31. 31.Double 57 =
  32. 32.24² =
  33. 33.92 ÷ 4 =
  34. 34.Best estimate of 206 + 595? (a) 800 (b) 600 (c) 1000
  35. 35.29 + 25 =
  36. 36.88 − 58 =
  37. 37.43 laddoos are packed in boxes of 3. How many laddoos are left over?
  38. 38.90 − 35 =
  39. 39.5% of ₹190 =
  40. 40.Double 46 =

Answer key

  1. 45
  2. 8
  3. 45
  4. 1200
  5. 24
  6. 1
  7. 441
  8. 81
  9. 2
  10. 48
  11. 74
  12. 180
  13. 5600
  14. 103
  15. 900
  16. 15
  17. 10
  18. 625
  19. 58
  20. 1
  21. 13
  22. 272
  23. 13
  24. 61
  25. 146
  26. 31
  27. 17
  28. 7200
  29. 104
  30. 60
  31. 114
  32. 576
  33. 23
  34. 800
  35. 54
  36. 30
  37. 1
  38. 55
  39. 9.5
  40. 92

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