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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 172 · 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. 1.95 − 59 =
  2. 2.115 − 97 =
  3. 3.81 − 78 =
  4. 4.202 − 177 =
  5. 5.203 − 193 =
  6. 6.84 − 65 =
  7. 7.105 − 77 =
  8. 8.501 − 494 =
  9. 9.116 − 84 =
  10. 10.84 − 68 =
  11. 11.1001 − 985 =
  12. 12.65 − 27 =
  13. 13.1007 − 994 =
  14. 14.109 − 71 =
  15. 15.81 − 62 =
  16. 16.308 − 292 =
  17. 17.1006 − 992 =
  18. 18.52 − 42 =
  19. 19.77 − 47 =
  20. 20.528 − 490 =
  21. 21.52 − 45 =
  22. 22.202 − 186 =
  23. 23.56 − 25 =
  24. 24.514 − 491 =
  25. 25.94 − 71 =
  26. 26.101 − 75 =
  27. 27.303 − 286 =
  28. 28.223 − 198 =
  29. 29.324 − 288 =
  30. 30.503 − 493 =
  31. 31.105 − 64 =
  32. 32.55 − 34 =
  33. 33.215 − 180 =
  34. 34.203 − 179 =
  35. 35.53 − 44 =
  36. 36.116 − 88 =
  37. 37.105 − 95 =
  38. 38.329 − 297 =
  39. 39.74 − 31 =
  40. 40.515 − 488 =

Answer key

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

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