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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 208 · 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. 1.1 + ? = 10
  2. 2.92 − 54 =
  3. 3.26 × 8 =
  4. 4.63 + 24 =
  5. 5.507 − 491 =
  6. 6.54 + ? = 100
  7. 7.25% of ₹560 =
  8. 8.You start your homework at 6:35 and finish at 9:45. How many minutes did you work?
  9. 9.79 − 57 =
  10. 10.55 × 3 =
  11. 11.Best estimate of 207 + 682? (a) 900 (b) 700 (c) 1100
  12. 12.Double 52 =
  13. 13.18 + 19 =
  14. 14.1019 − 995 =
  15. 15.680 − 99 =
  16. 16.63 + 62 =
  17. 17.13 × 8 =
  18. 18.15 × 7 =
  19. 19.44 × 7 =
  20. 20.5% of ₹890 =
  21. 21.Half of 104 =
  22. 22.61 − 29 =
  23. 23.Double 79 =
  24. 24.10% of ₹40 =
  25. 25.310 ÷ 5 =
  26. 26.63 − 41 =
  27. 27.40 − 29 =
  28. 28.89 − 44 =
  29. 29.89 + 8 =
  30. 30.36 × 4 =
  31. 31.36 × 8 =
  32. 32.Double 29 =
  33. 33.15 + 9 =
  34. 34.88 ÷ 4 =
  35. 35.248 ÷ 8 =
  36. 36.38 × 4 =
  37. 37.71 + 46 =
  38. 38.21² =
  39. 39.11² =
  40. 40.51 − 42 =

Answer key

  1. 9
  2. 38
  3. 208
  4. 87
  5. 16
  6. 46
  7. 140
  8. 190
  9. 22
  10. 165
  11. 900
  12. 104
  13. 37
  14. 24
  15. 581
  16. 125
  17. 104
  18. 105
  19. 308
  20. 44.5
  21. 52
  22. 32
  23. 158
  24. 4
  25. 62
  26. 22
  27. 11
  28. 45
  29. 97
  30. 144
  31. 288
  32. 58
  33. 24
  34. 22
  35. 31
  36. 152
  37. 117
  38. 441
  39. 121
  40. 9

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