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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 719 · 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. 1.306 − 293 =
  2. 2.88 − 74 =
  3. 3.1001 − 984 =
  4. 4.1004 − 983 =
  5. 5.207 − 179 =
  6. 6.223 − 185 =
  7. 7.117 − 96 =
  8. 8.307 − 298 =
  9. 9.65 − 25 =
  10. 10.209 − 193 =
  11. 11.1010 − 977 =
  12. 12.317 − 291 =
  13. 13.121 − 75 =
  14. 14.501 − 490 =
  15. 15.529 − 492 =
  16. 16.81 − 70 =
  17. 17.309 − 288 =
  18. 18.110 − 75 =
  19. 19.84 − 60 =
  20. 20.67 − 34 =
  21. 21.54 − 31 =
  22. 22.81 − 75 =
  23. 23.1005 − 983 =
  24. 24.1027 − 988 =
  25. 25.104 − 88 =
  26. 26.1004 − 976 =
  27. 27.101 − 65 =
  28. 28.1006 − 997 =
  29. 29.73 − 36 =
  30. 30.107 − 98 =
  31. 31.1015 − 982 =
  32. 32.57 − 41 =
  33. 33.98 − 62 =
  34. 34.515 − 490 =
  35. 35.202 − 179 =
  36. 36.98 − 59 =
  37. 37.129 − 87 =
  38. 38.230 − 175 =
  39. 39.230 − 185 =
  40. 40.504 − 483 =

Answer key

  1. 13
  2. 14
  3. 17
  4. 21
  5. 28
  6. 38
  7. 21
  8. 9
  9. 40
  10. 16
  11. 33
  12. 26
  13. 46
  14. 11
  15. 37
  16. 11
  17. 21
  18. 35
  19. 24
  20. 33
  21. 23
  22. 6
  23. 22
  24. 39
  25. 16
  26. 28
  27. 36
  28. 9
  29. 37
  30. 9
  31. 33
  32. 16
  33. 36
  34. 25
  35. 23
  36. 39
  37. 42
  38. 55
  39. 45
  40. 21

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