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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 432 · 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. 1.72 ÷ 4 =
  2. 2.348 ÷ 6 =
  3. 3.73 laddoos are packed in boxes of 8. How many laddoos are left over?
  4. 4.5% of ₹60 =
  5. 5.63 + ? = 100
  6. 6.295 − 99 =
  7. 7.49 × 3 =
  8. 8.86 + 5 =
  9. 9.10% of ₹900 =
  10. 10.240 ÷ 4 =
  11. 11.18 × 8 =
  12. 12.28 + 9 =
  13. 13.14 children stand in rows of 3. How many full rows can they make?
  14. 14.23 + 25 =
  15. 15.95 − 15 =
  16. 16.You buy a water bottle for ₹42 and pay with a ₹100 note. How much change do you get, in rupees?
  17. 17.26 + 19 =
  18. 18.22 + 51 =
  19. 19.74 × 9 =
  20. 20.What is the remainder when 21 is divided by 4?
  21. 21.99 − 78 =
  22. 22.219 − 191 =
  23. 23.728 ÷ 8 =
  24. 24.56 × 4 =
  25. 25.25% of ₹170 =
  26. 26.Double 25 =
  27. 27.662 + 99 =
  28. 28.48 + 6 =
  29. 29.567 ÷ 7 =
  30. 30.15 × 9 =
  31. 31.41 − 9 =
  32. 32.8 + 8 =
  33. 33.51 laddoos are packed in boxes of 7. How many laddoos are left over?
  34. 34.Best estimate of 39 × 87? (a) 36000 (b) 3600 (c) 360
  35. 35.12 × 4 =
  36. 36.29 + 83 =
  37. 37.144 ÷ 8 =
  38. 38.62 + 29 =
  39. 39.85 + 8 =
  40. 40.24 × 4 =

Answer key

  1. 18
  2. 58
  3. 1
  4. 3
  5. 37
  6. 196
  7. 147
  8. 91
  9. 90
  10. 60
  11. 144
  12. 37
  13. 4
  14. 48
  15. 80
  16. 58
  17. 45
  18. 73
  19. 666
  20. 1
  21. 21
  22. 28
  23. 91
  24. 224
  25. 42.5
  26. 50
  27. 761
  28. 54
  29. 81
  30. 135
  31. 32
  32. 16
  33. 2
  34. 3600
  35. 48
  36. 112
  37. 18
  38. 91
  39. 93
  40. 96

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