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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 150 · 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. 1.36 + 9 =
  2. 2.What is the remainder when 52 is divided by 8?
  3. 3.25 laddoos are packed in boxes of 6. How many laddoos are left over?
  4. 4.152 ÷ 4 =
  5. 5.56 − 19 =
  6. 6.331 + 99 =
  7. 7.31 × 6 =
  8. 8.99 − 19 =
  9. 9.865 − 99 =
  10. 10.252 ÷ 6 =
  11. 11.43 + 38 =
  12. 12.34 + 9 =
  13. 13.42 + ? = 100
  14. 14.96 × 4 =
  15. 15.58 + 8 =
  16. 16.54 × 7 =
  17. 17.88 − 14 =
  18. 18.57 − 36 =
  19. 19.23 × 8 =
  20. 20.16² =
  21. 21.35 × 8 =
  22. 22.100 ÷ 4 =
  23. 23.21 + 47 =
  24. 24.5% of ₹340 =
  25. 25.196 ÷ 7 =
  26. 26.26 × 3 =
  27. 27.312 ÷ 8 =
  28. 28.A cricket match starts at 6:30 and the first innings ends at 8:00. How many minutes did the innings last?
  29. 29.50% of ₹490 =
  30. 30.37 − 29 =
  31. 31.55 − 45 =
  32. 32.41 children stand in rows of 3. How many full rows can they make?
  33. 33.67 + 9 =
  34. 34.78 − 45 =
  35. 35.65 + 8 =
  36. 36.28 + ? = 100
  37. 37.12 + 11 =
  38. 38.136 ÷ 8 =
  39. 39.80 − 29 =
  40. 40.1 + ? = 10

Answer key

  1. 45
  2. 4
  3. 1
  4. 38
  5. 37
  6. 430
  7. 186
  8. 80
  9. 766
  10. 42
  11. 81
  12. 43
  13. 58
  14. 384
  15. 66
  16. 378
  17. 74
  18. 21
  19. 184
  20. 256
  21. 280
  22. 25
  23. 68
  24. 17
  25. 28
  26. 78
  27. 39
  28. 90
  29. 245
  30. 8
  31. 10
  32. 13
  33. 76
  34. 33
  35. 73
  36. 72
  37. 23
  38. 17
  39. 51
  40. 9

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