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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 581 · 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. 1.130 − 93 =
  2. 2.301 − 280 =
  3. 3.328 − 298 =
  4. 4.83 − 77 =
  5. 5.228 − 196 =
  6. 6.217 − 178 =
  7. 7.313 − 282 =
  8. 8.108 − 59 =
  9. 9.76 − 33 =
  10. 10.1027 − 993 =
  11. 11.112 − 95 =
  12. 12.113 − 89 =
  13. 13.100 − 59 =
  14. 14.109 − 61 =
  15. 15.209 − 187 =
  16. 16.73 − 47 =
  17. 17.1013 − 975 =
  18. 18.523 − 480 =
  19. 19.81 − 74 =
  20. 20.108 − 92 =
  21. 21.119 − 82 =
  22. 22.1020 − 994 =
  23. 23.520 − 476 =
  24. 24.309 − 289 =
  25. 25.113 − 83 =
  26. 26.90 − 55 =
  27. 27.213 − 176 =
  28. 28.84 − 55 =
  29. 29.507 − 484 =
  30. 30.1007 − 996 =
  31. 31.1007 − 980 =
  32. 32.1019 − 993 =
  33. 33.102 − 87 =
  34. 34.301 − 297 =
  35. 35.1015 − 988 =
  36. 36.1009 − 976 =
  37. 37.507 − 483 =
  38. 38.224 − 178 =
  39. 39.104 − 74 =
  40. 40.109 − 73 =

Answer key

  1. 37
  2. 21
  3. 30
  4. 6
  5. 32
  6. 39
  7. 31
  8. 49
  9. 43
  10. 34
  11. 17
  12. 24
  13. 41
  14. 48
  15. 22
  16. 26
  17. 38
  18. 43
  19. 7
  20. 16
  21. 37
  22. 26
  23. 44
  24. 20
  25. 30
  26. 35
  27. 37
  28. 29
  29. 23
  30. 11
  31. 27
  32. 26
  33. 15
  34. 4
  35. 27
  36. 33
  37. 24
  38. 46
  39. 30
  40. 36

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