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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 408 · 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. 1.81 − 59 =
  2. 2.120 − 87 =
  3. 3.128 − 90 =
  4. 4.325 − 295 =
  5. 5.97 − 73 =
  6. 6.70 − 38 =
  7. 7.104 − 84 =
  8. 8.107 − 98 =
  9. 9.1005 − 997 =
  10. 10.109 − 78 =
  11. 11.88 − 61 =
  12. 12.317 − 292 =
  13. 13.530 − 480 =
  14. 14.117 − 75 =
  15. 15.308 − 282 =
  16. 16.315 − 290 =
  17. 17.528 − 480 =
  18. 18.530 − 498 =
  19. 19.222 − 194 =
  20. 20.316 − 281 =
  21. 21.107 − 91 =
  22. 22.106 − 84 =
  23. 23.201 − 191 =
  24. 24.525 − 488 =
  25. 25.108 − 66 =
  26. 26.312 − 281 =
  27. 27.53 − 45 =
  28. 28.1013 − 975 =
  29. 29.64 − 48 =
  30. 30.129 − 94 =
  31. 31.323 − 278 =
  32. 32.316 − 277 =
  33. 33.97 − 77 =
  34. 34.1020 − 988 =
  35. 35.1006 − 991 =
  36. 36.1023 − 996 =
  37. 37.219 − 179 =
  38. 38.310 − 288 =
  39. 39.1016 − 997 =
  40. 40.97 − 76 =

Answer key

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

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