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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 200 · 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. 1.1002 − 994 =
  2. 2.68 − 33 =
  3. 3.1021 − 993 =
  4. 4.82 − 60 =
  5. 5.326 − 282 =
  6. 6.512 − 493 =
  7. 7.510 − 487 =
  8. 8.106 − 63 =
  9. 9.512 − 498 =
  10. 10.216 − 181 =
  11. 11.107 − 68 =
  12. 12.113 − 76 =
  13. 13.1029 − 985 =
  14. 14.225 − 197 =
  15. 15.95 − 62 =
  16. 16.1021 − 980 =
  17. 17.78 − 29 =
  18. 18.225 − 189 =
  19. 19.206 − 190 =
  20. 20.78 − 35 =
  21. 21.209 − 192 =
  22. 22.224 − 197 =
  23. 23.56 − 29 =
  24. 24.130 − 80 =
  25. 25.115 − 95 =
  26. 26.513 − 488 =
  27. 27.90 − 63 =
  28. 28.85 − 60 =
  29. 29.508 − 491 =
  30. 30.51 − 38 =
  31. 31.504 − 479 =
  32. 32.311 − 294 =
  33. 33.101 − 97 =
  34. 34.99 − 70 =
  35. 35.228 − 175 =
  36. 36.1018 − 994 =
  37. 37.220 − 191 =
  38. 38.122 − 91 =
  39. 39.88 − 75 =
  40. 40.74 − 44 =

Answer key

  1. 8
  2. 35
  3. 28
  4. 22
  5. 44
  6. 19
  7. 23
  8. 43
  9. 14
  10. 35
  11. 39
  12. 37
  13. 44
  14. 28
  15. 33
  16. 41
  17. 49
  18. 36
  19. 16
  20. 43
  21. 17
  22. 27
  23. 27
  24. 50
  25. 20
  26. 25
  27. 27
  28. 25
  29. 17
  30. 13
  31. 25
  32. 17
  33. 4
  34. 29
  35. 53
  36. 24
  37. 29
  38. 31
  39. 13
  40. 30

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