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Mental Subtraction Worksheet for Class 2 and 3

Mental maths lesson 7: Subtract 2-digit numbers left to right · Set 490 · 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. 1.89 − 33 =
  2. 2.90 − 81 =
  3. 3.71 − 24 =
  4. 4.85 − 43 =
  5. 5.90 − 23 =
  6. 6.62 − 21 =
  7. 7.80 − 46 =
  8. 8.83 − 14 =
  9. 9.98 − 19 =
  10. 10.67 − 24 =
  11. 11.78 − 57 =
  12. 12.95 − 68 =
  13. 13.70 − 13 =
  14. 14.53 − 33 =
  15. 15.78 − 49 =
  16. 16.74 − 27 =
  17. 17.72 − 23 =
  18. 18.60 − 51 =
  19. 19.72 − 41 =
  20. 20.74 − 41 =
  21. 21.99 − 41 =
  22. 22.95 − 49 =
  23. 23.94 − 27 =
  24. 24.54 − 17 =
  25. 25.95 − 79 =
  26. 26.78 − 21 =
  27. 27.95 − 17 =
  28. 28.98 − 25 =
  29. 29.71 − 26 =
  30. 30.82 − 41 =
  31. 31.91 − 72 =
  32. 32.79 − 16 =
  33. 33.71 − 45 =
  34. 34.87 − 22 =
  35. 35.99 − 62 =
  36. 36.73 − 59 =
  37. 37.64 − 31 =
  38. 38.92 − 15 =
  39. 39.55 − 12 =
  40. 40.98 − 69 =

Answer key

  1. 56
  2. 9
  3. 47
  4. 42
  5. 67
  6. 41
  7. 34
  8. 69
  9. 79
  10. 43
  11. 21
  12. 27
  13. 57
  14. 20
  15. 29
  16. 47
  17. 49
  18. 9
  19. 31
  20. 33
  21. 58
  22. 46
  23. 67
  24. 37
  25. 16
  26. 57
  27. 78
  28. 73
  29. 45
  30. 41
  31. 19
  32. 63
  33. 26
  34. 65
  35. 37
  36. 14
  37. 33
  38. 77
  39. 43
  40. 29

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