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Mental Subtraction Worksheet for Class 2 and 3

Mental maths lesson 7: Subtract 2-digit numbers left to right · Set 487 · 40 questions
TalentJR

How to do it in your head (Tens first): Keep the first number as it is. Take away the tens of the second number. Take away the ones (bridge back through a ten if you need to).

NameDateTime takenScore ___ / 40
  1. 1.94 − 24 =
  2. 2.77 − 27 =
  3. 3.52 − 21 =
  4. 4.99 − 57 =
  5. 5.60 − 51 =
  6. 6.98 − 29 =
  7. 7.96 − 69 =
  8. 8.57 − 39 =
  9. 9.97 − 53 =
  10. 10.81 − 21 =
  11. 11.58 − 31 =
  12. 12.63 − 41 =
  13. 13.90 − 49 =
  14. 14.61 − 43 =
  15. 15.95 − 21 =
  16. 16.69 − 56 =
  17. 17.52 − 35 =
  18. 18.96 − 19 =
  19. 19.56 − 26 =
  20. 20.91 − 54 =
  21. 21.55 − 34 =
  22. 22.55 − 45 =
  23. 23.73 − 18 =
  24. 24.82 − 49 =
  25. 25.71 − 41 =
  26. 26.82 − 28 =
  27. 27.94 − 84 =
  28. 28.94 − 78 =
  29. 29.63 − 46 =
  30. 30.98 − 75 =
  31. 31.92 − 61 =
  32. 32.96 − 25 =
  33. 33.64 − 18 =
  34. 34.90 − 18 =
  35. 35.79 − 21 =
  36. 36.55 − 19 =
  37. 37.79 − 26 =
  38. 38.71 − 18 =
  39. 39.89 − 55 =
  40. 40.86 − 61 =

Answer key

  1. 70
  2. 50
  3. 31
  4. 42
  5. 9
  6. 69
  7. 27
  8. 18
  9. 44
  10. 60
  11. 27
  12. 22
  13. 41
  14. 18
  15. 74
  16. 13
  17. 17
  18. 77
  19. 30
  20. 37
  21. 21
  22. 10
  23. 55
  24. 33
  25. 30
  26. 54
  27. 10
  28. 16
  29. 17
  30. 23
  31. 31
  32. 71
  33. 46
  34. 72
  35. 58
  36. 36
  37. 53
  38. 53
  39. 34
  40. 25

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