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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 680 · 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. 1.1023 − 998 =
  2. 2.94 − 75 =
  3. 3.79 − 29 =
  4. 4.107 − 80 =
  5. 5.85 − 62 =
  6. 6.515 − 480 =
  7. 7.1003 − 997 =
  8. 8.98 − 72 =
  9. 9.1002 − 992 =
  10. 10.53 − 40 =
  11. 11.109 − 62 =
  12. 12.72 − 26 =
  13. 13.503 − 489 =
  14. 14.59 − 37 =
  15. 15.102 − 56 =
  16. 16.301 − 297 =
  17. 17.517 − 495 =
  18. 18.51 − 35 =
  19. 19.1024 − 989 =
  20. 20.326 − 295 =
  21. 21.1006 − 993 =
  22. 22.219 − 192 =
  23. 23.1023 − 989 =
  24. 24.114 − 95 =
  25. 25.65 − 32 =
  26. 26.53 − 46 =
  27. 27.514 − 497 =
  28. 28.80 − 48 =
  29. 29.1006 − 976 =
  30. 30.307 − 293 =
  31. 31.307 − 276 =
  32. 32.112 − 76 =
  33. 33.1016 − 978 =
  34. 34.70 − 47 =
  35. 35.324 − 282 =
  36. 36.213 − 196 =
  37. 37.511 − 496 =
  38. 38.227 − 193 =
  39. 39.206 − 189 =
  40. 40.64 − 26 =

Answer key

  1. 25
  2. 19
  3. 50
  4. 27
  5. 23
  6. 35
  7. 6
  8. 26
  9. 10
  10. 13
  11. 47
  12. 46
  13. 14
  14. 22
  15. 46
  16. 4
  17. 22
  18. 16
  19. 35
  20. 31
  21. 13
  22. 27
  23. 34
  24. 19
  25. 33
  26. 7
  27. 17
  28. 32
  29. 30
  30. 14
  31. 31
  32. 36
  33. 38
  34. 23
  35. 42
  36. 17
  37. 15
  38. 34
  39. 17
  40. 38

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