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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 423 · 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. 1.307 − 277 =
  2. 2.95 − 70 =
  3. 3.111 − 95 =
  4. 4.225 − 193 =
  5. 5.109 − 65 =
  6. 6.98 − 69 =
  7. 7.1016 − 992 =
  8. 8.77 − 29 =
  9. 9.123 − 97 =
  10. 10.315 − 297 =
  11. 11.65 − 42 =
  12. 12.1001 − 995 =
  13. 13.87 − 74 =
  14. 14.114 − 89 =
  15. 15.127 − 95 =
  16. 16.1004 − 986 =
  17. 17.501 − 476 =
  18. 18.321 − 295 =
  19. 19.72 − 35 =
  20. 20.120 − 75 =
  21. 21.59 − 32 =
  22. 22.77 − 26 =
  23. 23.104 − 95 =
  24. 24.54 − 35 =
  25. 25.521 − 494 =
  26. 26.78 − 39 =
  27. 27.508 − 481 =
  28. 28.529 − 498 =
  29. 29.526 − 476 =
  30. 30.322 − 297 =
  31. 31.98 − 58 =
  32. 32.502 − 475 =
  33. 33.80 − 38 =
  34. 34.101 − 77 =
  35. 35.203 − 197 =
  36. 36.1018 − 979 =
  37. 37.107 − 77 =
  38. 38.113 − 94 =
  39. 39.212 − 194 =
  40. 40.111 − 97 =

Answer key

  1. 30
  2. 25
  3. 16
  4. 32
  5. 44
  6. 29
  7. 24
  8. 48
  9. 26
  10. 18
  11. 23
  12. 6
  13. 13
  14. 25
  15. 32
  16. 18
  17. 25
  18. 26
  19. 37
  20. 45
  21. 27
  22. 51
  23. 9
  24. 19
  25. 27
  26. 39
  27. 27
  28. 31
  29. 50
  30. 25
  31. 40
  32. 27
  33. 42
  34. 24
  35. 6
  36. 39
  37. 30
  38. 19
  39. 18
  40. 14

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