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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 566 · 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. 1.104 − 96 =
  2. 2.1013 − 998 =
  3. 3.507 − 488 =
  4. 4.62 − 29 =
  5. 5.53 − 27 =
  6. 6.103 − 97 =
  7. 7.59 − 29 =
  8. 8.514 − 482 =
  9. 9.520 − 498 =
  10. 10.124 − 96 =
  11. 11.217 − 192 =
  12. 12.221 − 186 =
  13. 13.224 − 178 =
  14. 14.317 − 297 =
  15. 15.507 − 480 =
  16. 16.103 − 56 =
  17. 17.505 − 490 =
  18. 18.303 − 297 =
  19. 19.303 − 295 =
  20. 20.108 − 88 =
  21. 21.107 − 78 =
  22. 22.228 − 185 =
  23. 23.108 − 82 =
  24. 24.68 − 40 =
  25. 25.327 − 294 =
  26. 26.304 − 287 =
  27. 27.209 − 186 =
  28. 28.105 − 77 =
  29. 29.63 − 33 =
  30. 30.98 − 58 =
  31. 31.207 − 176 =
  32. 32.505 − 475 =
  33. 33.208 − 175 =
  34. 34.86 − 75 =
  35. 35.202 − 181 =
  36. 36.520 − 481 =
  37. 37.1027 − 988 =
  38. 38.123 − 98 =
  39. 39.523 − 475 =
  40. 40.518 − 481 =

Answer key

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

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