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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 896 · 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 − 182 =
  2. 2.529 − 496 =
  3. 3.127 − 98 =
  4. 4.304 − 283 =
  5. 5.82 − 74 =
  6. 6.1005 − 983 =
  7. 7.217 − 182 =
  8. 8.104 − 79 =
  9. 9.1025 − 989 =
  10. 10.329 − 297 =
  11. 11.506 − 498 =
  12. 12.82 − 68 =
  13. 13.103 − 83 =
  14. 14.103 − 67 =
  15. 15.205 − 176 =
  16. 16.313 − 291 =
  17. 17.102 − 67 =
  18. 18.1007 − 986 =
  19. 19.319 − 286 =
  20. 20.109 − 60 =
  21. 21.507 − 479 =
  22. 22.111 − 92 =
  23. 23.226 − 185 =
  24. 24.115 − 75 =
  25. 25.223 − 181 =
  26. 26.210 − 176 =
  27. 27.82 − 57 =
  28. 28.84 − 66 =
  29. 29.72 − 32 =
  30. 30.313 − 286 =
  31. 31.102 − 59 =
  32. 32.1009 − 982 =
  33. 33.81 − 77 =
  34. 34.206 − 186 =
  35. 35.105 − 63 =
  36. 36.124 − 82 =
  37. 37.316 − 284 =
  38. 38.102 − 98 =
  39. 39.86 − 72 =
  40. 40.223 − 175 =

Answer key

  1. 20
  2. 33
  3. 29
  4. 21
  5. 8
  6. 22
  7. 35
  8. 25
  9. 36
  10. 32
  11. 8
  12. 14
  13. 20
  14. 36
  15. 29
  16. 22
  17. 35
  18. 21
  19. 33
  20. 49
  21. 28
  22. 19
  23. 41
  24. 40
  25. 42
  26. 34
  27. 25
  28. 18
  29. 40
  30. 27
  31. 43
  32. 27
  33. 4
  34. 20
  35. 42
  36. 42
  37. 32
  38. 4
  39. 14
  40. 48

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