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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 970 · 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. 1.13 + 15 =
  2. 2.59 + 3 =
  3. 3.88 × 3 =
  4. 4.26² =
  5. 5.4 + ? = 10
  6. 6.51 + 9 =
  7. 7.64 × 5 =
  8. 8.88 ÷ 8 =
  9. 9.66 − 48 =
  10. 10.50 + 19 =
  11. 11.8 + 10 =
  12. 12.792 ÷ 9 =
  13. 13.12² =
  14. 14.87 ÷ 3 =
  15. 15.38 × 4 =
  16. 16.65 − 19 =
  17. 17.28 + 19 =
  18. 18.17 × 8 =
  19. 19.1005 − 991 =
  20. 20.20 + 19 =
  21. 21.232 ÷ 8 =
  22. 22.15 + 8 =
  23. 23.515 − 493 =
  24. 24.29² =
  25. 25.96 × 4 =
  26. 26.238 ÷ 7 =
  27. 27.49 + ? = 100
  28. 28.What is the remainder when 56 is divided by 9?
  29. 29.125 − 86 =
  30. 30.43 × 4 =
  31. 31.77 + ? = 100
  32. 32.You start your homework at 5:05 and finish at 8:05. How many minutes did you work?
  33. 33.17 + 18 =
  34. 34.25² =
  35. 35.1006 − 992 =
  36. 36.50% of ₹760 =
  37. 37.47 + 6 =
  38. 38.44 + 52 =
  39. 39.A cricket match starts at 4:05 and the first innings ends at 6:00. How many minutes did the innings last?
  40. 40.13 + 19 =

Answer key

  1. 28
  2. 62
  3. 264
  4. 676
  5. 6
  6. 60
  7. 320
  8. 11
  9. 18
  10. 69
  11. 18
  12. 88
  13. 144
  14. 29
  15. 152
  16. 46
  17. 47
  18. 136
  19. 14
  20. 39
  21. 29
  22. 23
  23. 22
  24. 841
  25. 384
  26. 34
  27. 51
  28. 2
  29. 39
  30. 172
  31. 23
  32. 180
  33. 35
  34. 625
  35. 14
  36. 380
  37. 53
  38. 96
  39. 115
  40. 32

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