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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 876 · 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. 1.28 + 29 =
  2. 2.58 children stand in rows of 4. How many full rows can they make?
  3. 3.260 ÷ 5 =
  4. 4.9 + 8 =
  5. 5.62 + ? = 100
  6. 6.501 − 486 =
  7. 7.Best estimate of 96 × 94? (a) 90000 (b) 900 (c) 9000
  8. 8.9 + ? = 10
  9. 9.3 + ? = 10
  10. 10.Best estimate of 29 × 66? (a) 210 (b) 21000 (c) 2100
  11. 11.32 × 4 =
  12. 12.18 + 19 =
  13. 13.40 + 33 =
  14. 14.82 + ? = 100
  15. 15.21 + 58 =
  16. 16.35 × 8 =
  17. 17.66 + ? = 100
  18. 18.164 ÷ 4 =
  19. 19.5% of ₹530 =
  20. 20.73 − 36 =
  21. 21.28 + 27 =
  22. 22.What is the remainder when 57 is divided by 5?
  23. 23.31 × 8 =
  24. 24.9 + 10 =
  25. 25.56 + 41 =
  26. 26.74 × 4 =
  27. 27.769 − 99 =
  28. 28.45 + 7 =
  29. 29.15 + 19 =
  30. 30.55 − 26 =
  31. 31.26 + 9 =
  32. 32.21 × 4 =
  33. 33.47 × 3 =
  34. 34.Best estimate of 81 × 94? (a) 720 (b) 72000 (c) 7200
  35. 35.You buy a cricket ball for ₹41 and a pen for ₹29. You pay with a ₹100 note. How much change do you get, in rupees?
  36. 36.25 + 7 =
  37. 37.138 laddoos are packed in boxes of 9. How many laddoos are left over?
  38. 38.22 + 71 =
  39. 39.76 − 29 =
  40. 40.29 + 28 =

Answer key

  1. 57
  2. 14
  3. 52
  4. 17
  5. 38
  6. 15
  7. 9000
  8. 1
  9. 7
  10. 2100
  11. 128
  12. 37
  13. 73
  14. 18
  15. 79
  16. 280
  17. 34
  18. 41
  19. 26.5
  20. 37
  21. 55
  22. 2
  23. 248
  24. 19
  25. 97
  26. 296
  27. 670
  28. 52
  29. 34
  30. 29
  31. 35
  32. 84
  33. 141
  34. 7200
  35. 30
  36. 32
  37. 3
  38. 93
  39. 47
  40. 57

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