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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 798 · 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. 1.58 − 44 =
  2. 2.1015 − 992 =
  3. 3.203 − 189 =
  4. 4.310 − 296 =
  5. 5.223 − 177 =
  6. 6.57 − 48 =
  7. 7.216 − 193 =
  8. 8.527 − 498 =
  9. 9.86 − 76 =
  10. 10.79 − 31 =
  11. 11.96 − 73 =
  12. 12.217 − 193 =
  13. 13.214 − 177 =
  14. 14.515 − 490 =
  15. 15.94 − 61 =
  16. 16.107 − 92 =
  17. 17.95 − 69 =
  18. 18.322 − 295 =
  19. 19.110 − 83 =
  20. 20.78 − 32 =
  21. 21.58 − 31 =
  22. 22.121 − 96 =
  23. 23.129 − 77 =
  24. 24.317 − 283 =
  25. 25.77 − 25 =
  26. 26.515 − 480 =
  27. 27.318 − 296 =
  28. 28.78 − 30 =
  29. 29.510 − 491 =
  30. 30.219 − 197 =
  31. 31.214 − 193 =
  32. 32.90 − 59 =
  33. 33.520 − 496 =
  34. 34.322 − 281 =
  35. 35.1019 − 983 =
  36. 36.108 − 84 =
  37. 37.310 − 291 =
  38. 38.106 − 96 =
  39. 39.1002 − 988 =
  40. 40.125 − 85 =

Answer key

  1. 14
  2. 23
  3. 14
  4. 14
  5. 46
  6. 9
  7. 23
  8. 29
  9. 10
  10. 48
  11. 23
  12. 24
  13. 37
  14. 25
  15. 33
  16. 15
  17. 26
  18. 27
  19. 27
  20. 46
  21. 27
  22. 25
  23. 52
  24. 34
  25. 52
  26. 35
  27. 22
  28. 48
  29. 19
  30. 22
  31. 21
  32. 31
  33. 24
  34. 41
  35. 36
  36. 24
  37. 19
  38. 10
  39. 14
  40. 40

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