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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 348 · 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. 1.66 + 29 =
  2. 2.17 + 18 =
  3. 3.101 − 76 =
  4. 4.75 + 32 =
  5. 5.230 − 187 =
  6. 6.196 ÷ 4 =
  7. 7.19² =
  8. 8.You buy a pencil box for ₹13 and a pen for ₹19. You pay with a ₹100 note. How much change do you get, in rupees?
  9. 9.216 ÷ 4 =
  10. 10.324 ÷ 9 =
  11. 11.35 × 4 =
  12. 12.94 × 4 =
  13. 13.225 ÷ 5 =
  14. 14.33 + 29 =
  15. 15.56 + 9 =
  16. 16.55 + 6 =
  17. 17.25² =
  18. 18.61 + 79 =
  19. 19.58 − 19 =
  20. 20.11 + 13 =
  21. 21.212 ÷ 4 =
  22. 22.24 × 4 =
  23. 23.50 + ? = 100
  24. 24.196 − 99 =
  25. 25.95 − 19 =
  26. 26.86 × 3 =
  27. 27.You buy a kite for ₹413 and pay with a ₹500 note. How much change do you get, in rupees?
  28. 28.323 − 275 =
  29. 29.58 × 7 =
  30. 30.64 + ? = 100
  31. 31.9 + ? = 10
  32. 32.46 × 4 =
  33. 33.426 ÷ 6 =
  34. 34.108 ÷ 4 =
  35. 35.15 × 8 =
  36. 36.28 + 27 =
  37. 37.You buy a bag of mangoes for ₹77 and pay with a ₹100 note. How much change do you get, in rupees?
  38. 38.66 + 23 =
  39. 39.67 + 7 =
  40. 40.41 − 29 =

Answer key

  1. 95
  2. 35
  3. 25
  4. 107
  5. 43
  6. 49
  7. 361
  8. 68
  9. 54
  10. 36
  11. 140
  12. 376
  13. 45
  14. 62
  15. 65
  16. 61
  17. 625
  18. 140
  19. 39
  20. 24
  21. 53
  22. 96
  23. 50
  24. 97
  25. 76
  26. 258
  27. 87
  28. 48
  29. 406
  30. 36
  31. 1
  32. 184
  33. 71
  34. 27
  35. 120
  36. 55
  37. 23
  38. 89
  39. 74
  40. 12

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