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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 699 · 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. 1.16² =
  2. 2.25 + 26 =
  3. 3.18 + 3 =
  4. 4.65 − 27 =
  5. 5.Best estimate of 290 + 163? (a) 500 (b) 300 (c) 700
  6. 6.41 × 7 =
  7. 7.94 − 79 =
  8. 8.13 × 4 =
  9. 9.208 ÷ 4 =
  10. 10.35 + 8 =
  11. 11.1 + ? = 10
  12. 12.72 × 8 =
  13. 13.128 ÷ 8 =
  14. 14.10% of ₹200 =
  15. 15.96 ÷ 8 =
  16. 16.34 + 29 =
  17. 17.21 + ? = 100
  18. 18.11² =
  19. 19.595 + 99 =
  20. 20.55 − 27 =
  21. 21.14² =
  22. 22.10% of ₹250 =
  23. 23.18 + 19 =
  24. 24.A train leaves at 6:10 and reaches the next city at 7:00. How many minutes is the journey?
  25. 25.You buy a kite for ₹392 and pay with a ₹500 note. How much change do you get, in rupees?
  26. 26.288 ÷ 6 =
  27. 27.30 × 8 =
  28. 28.136 ÷ 4 =
  29. 29.30 + 29 =
  30. 30.28² =
  31. 31.54 − 14 =
  32. 32.190 − 99 =
  33. 33.5 + ? = 10
  34. 34.15² =
  35. 35.50% of ₹440 =
  36. 36.1029 − 992 =
  37. 37.15 + 14 =
  38. 38.24 + 22 =
  39. 39.36 × 7 =
  40. 40.10% of ₹790 =

Answer key

  1. 256
  2. 51
  3. 21
  4. 38
  5. 500
  6. 287
  7. 15
  8. 52
  9. 52
  10. 43
  11. 9
  12. 576
  13. 16
  14. 20
  15. 12
  16. 63
  17. 79
  18. 121
  19. 694
  20. 28
  21. 196
  22. 25
  23. 37
  24. 50
  25. 108
  26. 48
  27. 240
  28. 34
  29. 59
  30. 784
  31. 40
  32. 91
  33. 5
  34. 225
  35. 220
  36. 37
  37. 29
  38. 46
  39. 252
  40. 79

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