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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 808 · 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. 1.97 − 74 =
  2. 2.521 − 497 =
  3. 3.306 − 281 =
  4. 4.95 − 70 =
  5. 5.1022 − 985 =
  6. 6.88 − 58 =
  7. 7.303 − 295 =
  8. 8.310 − 277 =
  9. 9.1009 − 989 =
  10. 10.80 − 33 =
  11. 11.90 − 72 =
  12. 12.109 − 82 =
  13. 13.101 − 85 =
  14. 14.214 − 197 =
  15. 15.104 − 95 =
  16. 16.523 − 485 =
  17. 17.1013 − 977 =
  18. 18.223 − 176 =
  19. 19.56 − 39 =
  20. 20.108 − 84 =
  21. 21.513 − 484 =
  22. 22.327 − 285 =
  23. 23.95 − 68 =
  24. 24.65 − 25 =
  25. 25.1010 − 980 =
  26. 26.68 − 34 =
  27. 27.511 − 476 =
  28. 28.311 − 290 =
  29. 29.225 − 183 =
  30. 30.503 − 478 =
  31. 31.108 − 63 =
  32. 32.1024 − 994 =
  33. 33.1012 − 976 =
  34. 34.1018 − 986 =
  35. 35.229 − 182 =
  36. 36.517 − 496 =
  37. 37.58 − 29 =
  38. 38.313 − 277 =
  39. 39.1021 − 985 =
  40. 40.109 − 74 =

Answer key

  1. 23
  2. 24
  3. 25
  4. 25
  5. 37
  6. 30
  7. 8
  8. 33
  9. 20
  10. 47
  11. 18
  12. 27
  13. 16
  14. 17
  15. 9
  16. 38
  17. 36
  18. 47
  19. 17
  20. 24
  21. 29
  22. 42
  23. 27
  24. 40
  25. 30
  26. 34
  27. 35
  28. 21
  29. 42
  30. 25
  31. 45
  32. 30
  33. 36
  34. 32
  35. 47
  36. 21
  37. 29
  38. 36
  39. 36
  40. 35

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