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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 89 · 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. 1.306 − 282 =
  2. 2.528 − 475 =
  3. 3.111 − 93 =
  4. 4.210 − 191 =
  5. 5.52 − 46 =
  6. 6.129 − 86 =
  7. 7.316 − 286 =
  8. 8.1019 − 994 =
  9. 9.309 − 279 =
  10. 10.522 − 498 =
  11. 11.505 − 481 =
  12. 12.123 − 98 =
  13. 13.502 − 479 =
  14. 14.311 − 286 =
  15. 15.203 − 178 =
  16. 16.201 − 194 =
  17. 17.206 − 192 =
  18. 18.70 − 26 =
  19. 19.107 − 82 =
  20. 20.51 − 40 =
  21. 21.223 − 175 =
  22. 22.1024 − 996 =
  23. 23.222 − 176 =
  24. 24.507 − 482 =
  25. 25.54 − 38 =
  26. 26.95 − 65 =
  27. 27.325 − 283 =
  28. 28.62 − 25 =
  29. 29.1016 − 975 =
  30. 30.209 − 175 =
  31. 31.325 − 275 =
  32. 32.128 − 85 =
  33. 33.55 − 29 =
  34. 34.101 − 94 =
  35. 35.124 − 80 =
  36. 36.128 − 82 =
  37. 37.207 − 185 =
  38. 38.520 − 494 =
  39. 39.216 − 197 =
  40. 40.107 − 71 =

Answer key

  1. 24
  2. 53
  3. 18
  4. 19
  5. 6
  6. 43
  7. 30
  8. 25
  9. 30
  10. 24
  11. 24
  12. 25
  13. 23
  14. 25
  15. 25
  16. 7
  17. 14
  18. 44
  19. 25
  20. 11
  21. 48
  22. 28
  23. 46
  24. 25
  25. 16
  26. 30
  27. 42
  28. 37
  29. 41
  30. 34
  31. 50
  32. 43
  33. 26
  34. 7
  35. 44
  36. 46
  37. 22
  38. 26
  39. 19
  40. 36

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