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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 887 · 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. 1.321 − 287 =
  2. 2.82 − 65 =
  3. 3.57 − 41 =
  4. 4.1019 − 978 =
  5. 5.304 − 291 =
  6. 6.306 − 289 =
  7. 7.323 − 298 =
  8. 8.316 − 279 =
  9. 9.223 − 183 =
  10. 10.129 − 89 =
  11. 11.73 − 46 =
  12. 12.1004 − 996 =
  13. 13.107 − 76 =
  14. 14.1001 − 995 =
  15. 15.511 − 493 =
  16. 16.64 − 47 =
  17. 17.77 − 35 =
  18. 18.68 − 43 =
  19. 19.316 − 286 =
  20. 20.63 − 27 =
  21. 21.71 − 30 =
  22. 22.97 − 78 =
  23. 23.84 − 77 =
  24. 24.99 − 76 =
  25. 25.103 − 69 =
  26. 26.325 − 293 =
  27. 27.1019 − 989 =
  28. 28.1006 − 994 =
  29. 29.1009 − 987 =
  30. 30.310 − 286 =
  31. 31.215 − 192 =
  32. 32.96 − 65 =
  33. 33.65 − 31 =
  34. 34.129 − 79 =
  35. 35.70 − 29 =
  36. 36.51 − 26 =
  37. 37.529 − 497 =
  38. 38.503 − 492 =
  39. 39.208 − 180 =
  40. 40.107 − 96 =

Answer key

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

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