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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 435 · 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. 1.202 − 198 =
  2. 2.319 − 297 =
  3. 3.94 − 57 =
  4. 4.330 − 291 =
  5. 5.101 − 87 =
  6. 6.110 − 83 =
  7. 7.309 − 282 =
  8. 8.110 − 62 =
  9. 9.121 − 94 =
  10. 10.221 − 176 =
  11. 11.102 − 83 =
  12. 12.109 − 75 =
  13. 13.302 − 290 =
  14. 14.205 − 196 =
  15. 15.77 − 28 =
  16. 16.501 − 487 =
  17. 17.510 − 478 =
  18. 18.78 − 32 =
  19. 19.120 − 93 =
  20. 20.219 − 197 =
  21. 21.113 − 96 =
  22. 22.310 − 293 =
  23. 23.59 − 40 =
  24. 24.123 − 98 =
  25. 25.225 − 179 =
  26. 26.511 − 488 =
  27. 27.1020 − 979 =
  28. 28.529 − 491 =
  29. 29.1004 − 980 =
  30. 30.91 − 59 =
  31. 31.310 − 291 =
  32. 32.88 − 62 =
  33. 33.57 − 26 =
  34. 34.59 − 48 =
  35. 35.73 − 48 =
  36. 36.111 − 75 =
  37. 37.95 − 74 =
  38. 38.123 − 92 =
  39. 39.1009 − 991 =
  40. 40.120 − 75 =

Answer key

  1. 4
  2. 22
  3. 37
  4. 39
  5. 14
  6. 27
  7. 27
  8. 48
  9. 27
  10. 45
  11. 19
  12. 34
  13. 12
  14. 9
  15. 49
  16. 14
  17. 32
  18. 46
  19. 27
  20. 22
  21. 17
  22. 17
  23. 19
  24. 25
  25. 46
  26. 23
  27. 41
  28. 38
  29. 24
  30. 32
  31. 19
  32. 26
  33. 31
  34. 11
  35. 25
  36. 36
  37. 21
  38. 31
  39. 18
  40. 45

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