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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 381 · 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. 1.519 − 491 =
  2. 2.524 − 490 =
  3. 3.210 − 190 =
  4. 4.83 − 63 =
  5. 5.96 − 61 =
  6. 6.84 − 77 =
  7. 7.513 − 485 =
  8. 8.203 − 195 =
  9. 9.519 − 489 =
  10. 10.525 − 488 =
  11. 11.119 − 90 =
  12. 12.221 − 193 =
  13. 13.70 − 30 =
  14. 14.71 − 39 =
  15. 15.64 − 37 =
  16. 16.1007 − 981 =
  17. 17.1001 − 990 =
  18. 18.106 − 77 =
  19. 19.1019 − 991 =
  20. 20.129 − 86 =
  21. 21.226 − 187 =
  22. 22.211 − 175 =
  23. 23.1020 − 994 =
  24. 24.322 − 295 =
  25. 25.93 − 73 =
  26. 26.102 − 85 =
  27. 27.220 − 187 =
  28. 28.58 − 29 =
  29. 29.226 − 192 =
  30. 30.218 − 193 =
  31. 31.502 − 497 =
  32. 32.67 − 43 =
  33. 33.226 − 178 =
  34. 34.522 − 488 =
  35. 35.88 − 67 =
  36. 36.204 − 189 =
  37. 37.110 − 75 =
  38. 38.1011 − 983 =
  39. 39.87 − 67 =
  40. 40.128 − 86 =

Answer key

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

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