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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 554 · 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. 1.720 + 99 =
  2. 2.24 − 9 =
  3. 3.34 × 4 =
  4. 4.What is the remainder when 39 is divided by 4?
  5. 5.35 + 72 =
  6. 6.609 + 99 =
  7. 7.120 ÷ 8 =
  8. 8.108 − 77 =
  9. 9.A film starts at 3:30 and ends at 5:45. How many minutes long is the film?
  10. 10.56 − 21 =
  11. 11.You buy a kite for ₹66 and pay with a ₹100 note. How much change do you get, in rupees?
  12. 12.9 + ? = 10
  13. 13.Best estimate of 131 + 164? (a) 300 (b) 500 (c) 100
  14. 14.22 + ? = 100
  15. 15.24² =
  16. 16.486 ÷ 9 =
  17. 17.36 × 8 =
  18. 18.228 − 195 =
  19. 19.168 ÷ 4 =
  20. 20.288 ÷ 8 =
  21. 21.722 + 99 =
  22. 22.6 + 8 =
  23. 23.190 − 99 =
  24. 24.5% of ₹900 =
  25. 25.What is the remainder when 22 is divided by 3?
  26. 26.You buy a kite for ₹241 and pay with a ₹500 note. How much change do you get, in rupees?
  27. 27.52 − 27 =
  28. 28.5 + ? = 10
  29. 29.58 − 27 =
  30. 30.25% of ₹170 =
  31. 31.12 + 14 =
  32. 32.23 + 49 =
  33. 33.28 + 31 =
  34. 34.85 × 3 =
  35. 35.21 × 5 =
  36. 36.56 + ? = 100
  37. 37.26 + 7 =
  38. 38.58 × 6 =
  39. 39.477 ÷ 9 =
  40. 40.47 children stand in rows of 4. How many full rows can they make?

Answer key

  1. 819
  2. 15
  3. 136
  4. 3
  5. 107
  6. 708
  7. 15
  8. 31
  9. 135
  10. 35
  11. 34
  12. 1
  13. 300
  14. 78
  15. 576
  16. 54
  17. 288
  18. 33
  19. 42
  20. 36
  21. 821
  22. 14
  23. 91
  24. 45
  25. 1
  26. 259
  27. 25
  28. 5
  29. 31
  30. 42.5
  31. 26
  32. 72
  33. 59
  34. 255
  35. 105
  36. 44
  37. 33
  38. 348
  39. 53
  40. 11

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