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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 738 · 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. 1.216 − 194 =
  2. 2.220 − 193 =
  3. 3.1017 − 987 =
  4. 4.78 − 42 =
  5. 5.504 − 496 =
  6. 6.315 − 295 =
  7. 7.301 − 283 =
  8. 8.99 − 78 =
  9. 9.72 − 43 =
  10. 10.319 − 292 =
  11. 11.313 − 291 =
  12. 12.209 − 181 =
  13. 13.117 − 80 =
  14. 14.125 − 78 =
  15. 15.1014 − 989 =
  16. 16.311 − 289 =
  17. 17.103 − 98 =
  18. 18.207 − 187 =
  19. 19.55 − 37 =
  20. 20.89 − 68 =
  21. 21.55 − 48 =
  22. 22.102 − 75 =
  23. 23.52 − 43 =
  24. 24.106 − 89 =
  25. 25.125 − 75 =
  26. 26.109 − 66 =
  27. 27.52 − 44 =
  28. 28.307 − 292 =
  29. 29.513 − 497 =
  30. 30.1013 − 985 =
  31. 31.302 − 295 =
  32. 32.95 − 60 =
  33. 33.53 − 25 =
  34. 34.1014 − 994 =
  35. 35.515 − 494 =
  36. 36.225 − 195 =
  37. 37.118 − 96 =
  38. 38.202 − 182 =
  39. 39.1004 − 990 =
  40. 40.57 − 41 =

Answer key

  1. 22
  2. 27
  3. 30
  4. 36
  5. 8
  6. 20
  7. 18
  8. 21
  9. 29
  10. 27
  11. 22
  12. 28
  13. 37
  14. 47
  15. 25
  16. 22
  17. 5
  18. 20
  19. 18
  20. 21
  21. 7
  22. 27
  23. 9
  24. 17
  25. 50
  26. 43
  27. 8
  28. 15
  29. 16
  30. 28
  31. 7
  32. 35
  33. 28
  34. 20
  35. 21
  36. 30
  37. 22
  38. 20
  39. 14
  40. 16

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