← Mixed mental challenge lesson New set →

Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 740 · 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. 1.91 − 60 =
  2. 2.Best estimate of 50 × 36? (a) 2000 (b) 200 (c) 20000
  3. 3.83 laddoos are packed in boxes of 6. How many laddoos are left over?
  4. 4.427 ÷ 7 =
  5. 5.14² =
  6. 6.A film starts at 7:30 and ends at 9:30. How many minutes long is the film?
  7. 7.Best estimate of 38 × 20? (a) 80 (b) 800 (c) 8000
  8. 8.You buy a kite for ₹29 and pay with a ₹100 note. How much change do you get, in rupees?
  9. 9.21 + 22 =
  10. 10.35 laddoos are packed in boxes of 3. How many laddoos are left over?
  11. 11.102 ÷ 3 =
  12. 12.Half of 176 =
  13. 13.35 laddoos are packed in boxes of 6. How many laddoos are left over?
  14. 14.13 + 14 =
  15. 15.70 + 17 =
  16. 16.26 + 5 =
  17. 17.5% of ₹50 =
  18. 18.42 − 29 =
  19. 19.22 + ? = 100
  20. 20.61 + ? = 100
  21. 21.164 ÷ 4 =
  22. 22.23² =
  23. 23.12 × 4 =
  24. 24.56 + 8 =
  25. 25.522 − 495 =
  26. 26.27 × 8 =
  27. 27.56 − 9 =
  28. 28.370 ÷ 5 =
  29. 29.96 ÷ 8 =
  30. 30.28² =
  31. 31.59 × 9 =
  32. 32.You buy a notebook for ₹42 and pay with a ₹100 note. How much change do you get, in rupees?
  33. 33.49 + 12 =
  34. 34.Best estimate of 612 + 840? (a) 1200 (b) 1400 (c) 1600
  35. 35.55 − 28 =
  36. 36.What is the remainder when 14 is divided by 3?
  37. 37.You buy a pencil box for ₹459 and pay with a ₹500 note. How much change do you get, in rupees?
  38. 38.65 × 4 =
  39. 39.17 + 18 =
  40. 40.27² =

Answer key

  1. 31
  2. 2000
  3. 5
  4. 61
  5. 196
  6. 120
  7. 800
  8. 71
  9. 43
  10. 2
  11. 34
  12. 88
  13. 5
  14. 27
  15. 87
  16. 31
  17. 2.5
  18. 13
  19. 78
  20. 39
  21. 41
  22. 529
  23. 48
  24. 64
  25. 27
  26. 216
  27. 47
  28. 74
  29. 12
  30. 784
  31. 531
  32. 58
  33. 61
  34. 1400
  35. 27
  36. 2
  37. 41
  38. 260
  39. 35
  40. 729

Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths