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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 511 · 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. 1.46 + 5 =
  2. 2.What is the remainder when 54 is divided by 4?
  3. 3.224 ÷ 8 =
  4. 4.528 ÷ 8 =
  5. 5.19 × 7 =
  6. 6.217 ÷ 7 =
  7. 7.Half of 60 =
  8. 8.14² =
  9. 9.88 ÷ 4 =
  10. 10.25% of ₹200 =
  11. 11.62 children stand in rows of 4. How many full rows can they make?
  12. 12.A train leaves at 2:30 and reaches the next city at 3:50. How many minutes is the journey?
  13. 13.19 × 4 =
  14. 14.36 + 31 =
  15. 15.93 − 33 =
  16. 16.85 + ? = 100
  17. 17.11 + 10 =
  18. 18.Best estimate of 429 + 807? (a) 1200 (b) 1400 (c) 1000
  19. 19.25 + 9 =
  20. 20.Best estimate of 442 + 348? (a) 700 (b) 900 (c) 500
  21. 21.23² =
  22. 22.10% of ₹640 =
  23. 23.63 − 45 =
  24. 24.14 children stand in rows of 3. How many full rows can they make?
  25. 25.66 − 56 =
  26. 26.You buy a cricket ball for ₹459 and pay with a ₹500 note. How much change do you get, in rupees?
  27. 27.57 × 8 =
  28. 28.74 + 63 =
  29. 29.28 + 29 =
  30. 30.94 − 62 =
  31. 31.10% of ₹700 =
  32. 32.50% of ₹310 =
  33. 33.576 ÷ 6 =
  34. 34.82 + 41 =
  35. 35.Best estimate of 134 + 859? (a) 1200 (b) 1000 (c) 800
  36. 36.Half of 148 =
  37. 37.14 × 4 =
  38. 38.32 − 19 =
  39. 39.29 + 28 =
  40. 40.108 ÷ 6 =

Answer key

  1. 51
  2. 2
  3. 28
  4. 66
  5. 133
  6. 31
  7. 30
  8. 196
  9. 22
  10. 50
  11. 15
  12. 80
  13. 76
  14. 67
  15. 60
  16. 15
  17. 21
  18. 1200
  19. 34
  20. 700
  21. 529
  22. 64
  23. 18
  24. 4
  25. 10
  26. 41
  27. 456
  28. 137
  29. 57
  30. 32
  31. 70
  32. 155
  33. 96
  34. 123
  35. 1000
  36. 74
  37. 56
  38. 13
  39. 57
  40. 18

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