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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 802 · 40 questions
TalentJR

How to do it in your head (Count up): Start at the smaller number. Jump to the next ten, then the next hundred, then to the bigger number. Add up all the jumps.

NameDateTime takenScore ___ / 40
  1. 1.106 − 96 =
  2. 2.103 − 97 =
  3. 3.61 − 40 =
  4. 4.92 − 63 =
  5. 5.104 − 55 =
  6. 6.119 − 90 =
  7. 7.68 − 48 =
  8. 8.502 − 476 =
  9. 9.220 − 192 =
  10. 10.1024 − 982 =
  11. 11.304 − 286 =
  12. 12.229 − 192 =
  13. 13.310 − 293 =
  14. 14.518 − 492 =
  15. 15.502 − 490 =
  16. 16.1014 − 977 =
  17. 17.56 − 40 =
  18. 18.1005 − 984 =
  19. 19.508 − 486 =
  20. 20.1005 − 975 =
  21. 21.96 − 57 =
  22. 22.98 − 78 =
  23. 23.115 − 96 =
  24. 24.513 − 487 =
  25. 25.107 − 72 =
  26. 26.88 − 64 =
  27. 27.501 − 479 =
  28. 28.108 − 76 =
  29. 29.228 − 198 =
  30. 30.62 − 33 =
  31. 31.1018 − 986 =
  32. 32.525 − 484 =
  33. 33.1018 − 985 =
  34. 34.78 − 44 =
  35. 35.97 − 67 =
  36. 36.505 − 492 =
  37. 37.87 − 57 =
  38. 38.1029 − 986 =
  39. 39.64 − 43 =
  40. 40.114 − 86 =

Answer key

  1. 10
  2. 6
  3. 21
  4. 29
  5. 49
  6. 29
  7. 20
  8. 26
  9. 28
  10. 42
  11. 18
  12. 37
  13. 17
  14. 26
  15. 12
  16. 37
  17. 16
  18. 21
  19. 22
  20. 30
  21. 39
  22. 20
  23. 19
  24. 26
  25. 35
  26. 24
  27. 22
  28. 32
  29. 30
  30. 29
  31. 32
  32. 41
  33. 33
  34. 34
  35. 30
  36. 13
  37. 30
  38. 43
  39. 21
  40. 28

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