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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 822 · 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. 1.28 + 7 =
  2. 2.What is the remainder when 109 is divided by 7?
  3. 3.68 + 5 =
  4. 4.83 − 17 =
  5. 5.74 + ? = 100
  6. 6.Double 21 =
  7. 7.108 + 99 =
  8. 8.88 ÷ 4 =
  9. 9.Double 26 =
  10. 10.6 + 7 =
  11. 11.25 + ? = 100
  12. 12.68 × 4 =
  13. 13.12 × 4 =
  14. 14.15² =
  15. 15.26² =
  16. 16.65 + 9 =
  17. 17.150 ÷ 6 =
  18. 18.82 + 23 =
  19. 19.29 + 30 =
  20. 20.504 ÷ 8 =
  21. 21.49 + ? = 100
  22. 22.10% of ₹400 =
  23. 23.78 + ? = 100
  24. 24.107 + 99 =
  25. 25.22 + 25 =
  26. 26.224 ÷ 4 =
  27. 27.You buy a kite for ₹13 and pay with a ₹100 note. How much change do you get, in rupees?
  28. 28.57 × 6 =
  29. 29.52 × 4 =
  30. 30.91 × 9 =
  31. 31.132 ÷ 4 =
  32. 32.819 ÷ 9 =
  33. 33.93 ÷ 3 =
  34. 34.61 × 5 =
  35. 35.80 − 49 =
  36. 36.1 + ? = 10
  37. 37.Double 35 =
  38. 38.A cricket match starts at 6:30 and the first innings ends at 9:10. How many minutes did the innings last?
  39. 39.Half of 184 =
  40. 40.59 + ? = 100

Answer key

  1. 35
  2. 4
  3. 73
  4. 66
  5. 26
  6. 42
  7. 207
  8. 22
  9. 52
  10. 13
  11. 75
  12. 272
  13. 48
  14. 225
  15. 676
  16. 74
  17. 25
  18. 105
  19. 59
  20. 63
  21. 51
  22. 40
  23. 22
  24. 206
  25. 47
  26. 56
  27. 87
  28. 342
  29. 208
  30. 819
  31. 33
  32. 91
  33. 31
  34. 305
  35. 31
  36. 9
  37. 70
  38. 160
  39. 92
  40. 41

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