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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 102 · 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. 1.108 − 76 =
  2. 2.79 − 41 =
  3. 3.511 − 489 =
  4. 4.105 − 92 =
  5. 5.503 − 495 =
  6. 6.222 − 175 =
  7. 7.1030 − 995 =
  8. 8.527 − 484 =
  9. 9.115 − 93 =
  10. 10.521 − 475 =
  11. 11.78 − 37 =
  12. 12.220 − 183 =
  13. 13.529 − 479 =
  14. 14.318 − 292 =
  15. 15.216 − 190 =
  16. 16.507 − 497 =
  17. 17.1030 − 989 =
  18. 18.64 − 42 =
  19. 19.105 − 82 =
  20. 20.94 − 74 =
  21. 21.501 − 490 =
  22. 22.62 − 34 =
  23. 23.120 − 83 =
  24. 24.124 − 76 =
  25. 25.313 − 295 =
  26. 26.202 − 180 =
  27. 27.58 − 29 =
  28. 28.1019 − 975 =
  29. 29.1009 − 996 =
  30. 30.129 − 97 =
  31. 31.522 − 486 =
  32. 32.101 − 75 =
  33. 33.222 − 190 =
  34. 34.1001 − 988 =
  35. 35.95 − 73 =
  36. 36.219 − 185 =
  37. 37.510 − 480 =
  38. 38.526 − 492 =
  39. 39.1006 − 978 =
  40. 40.201 − 195 =

Answer key

  1. 32
  2. 38
  3. 22
  4. 13
  5. 8
  6. 47
  7. 35
  8. 43
  9. 22
  10. 46
  11. 41
  12. 37
  13. 50
  14. 26
  15. 26
  16. 10
  17. 41
  18. 22
  19. 23
  20. 20
  21. 11
  22. 28
  23. 37
  24. 48
  25. 18
  26. 22
  27. 29
  28. 44
  29. 13
  30. 32
  31. 36
  32. 26
  33. 32
  34. 13
  35. 22
  36. 34
  37. 30
  38. 34
  39. 28
  40. 6

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