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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 198 · 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. 1.11 + 10 =
  2. 2.6 + 7 =
  3. 3.31 + 67 =
  4. 4.30 + 31 =
  5. 5.314 − 287 =
  6. 6.41 children stand in rows of 7. How many full rows can they make?
  7. 7.76 + 49 =
  8. 8.17 + 16 =
  9. 9.You buy a cricket ball for ₹410 and pay with a ₹500 note. How much change do you get, in rupees?
  10. 10.5% of ₹780 =
  11. 11.86 laddoos are packed in boxes of 8. How many laddoos are left over?
  12. 12.21 + 34 =
  13. 13.1 + ? = 10
  14. 14.35 + 6 =
  15. 15.64 + 71 =
  16. 16.112 ÷ 4 =
  17. 17.66 + 9 =
  18. 18.5% of ₹820 =
  19. 19.174 + 99 =
  20. 20.56 × 5 =
  21. 21.78 × 4 =
  22. 22.99 − 28 =
  23. 23.27 laddoos are packed in boxes of 6. How many laddoos are left over?
  24. 24.19 × 8 =
  25. 25.57 − 47 =
  26. 26.75 − 51 =
  27. 27.216 ÷ 8 =
  28. 28.164 ÷ 4 =
  29. 29.54 laddoos are packed in boxes of 7. How many laddoos are left over?
  30. 30.19 + 21 =
  31. 31.26 + 25 =
  32. 32.27 × 4 =
  33. 33.35 + 9 =
  34. 34.228 − 194 =
  35. 35.19² =
  36. 36.13 × 8 =
  37. 37.Half of 134 =
  38. 38.What is the remainder when 68 is divided by 5?
  39. 39.48 − 19 =
  40. 40.86 − 76 =

Answer key

  1. 21
  2. 13
  3. 98
  4. 61
  5. 27
  6. 5
  7. 125
  8. 33
  9. 90
  10. 39
  11. 6
  12. 55
  13. 9
  14. 41
  15. 135
  16. 28
  17. 75
  18. 41
  19. 273
  20. 280
  21. 312
  22. 71
  23. 3
  24. 152
  25. 10
  26. 24
  27. 27
  28. 41
  29. 5
  30. 40
  31. 51
  32. 108
  33. 44
  34. 34
  35. 361
  36. 104
  37. 67
  38. 3
  39. 29
  40. 10

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