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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 874 · 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. 1.88 − 63 =
  2. 2.55 − 46 =
  3. 3.207 − 179 =
  4. 4.526 − 476 =
  5. 5.70 − 37 =
  6. 6.306 − 296 =
  7. 7.505 − 488 =
  8. 8.103 − 96 =
  9. 9.76 − 34 =
  10. 10.126 − 97 =
  11. 11.94 − 71 =
  12. 12.217 − 184 =
  13. 13.59 − 48 =
  14. 14.75 − 32 =
  15. 15.102 − 89 =
  16. 16.512 − 483 =
  17. 17.90 − 57 =
  18. 18.329 − 286 =
  19. 19.506 − 493 =
  20. 20.1025 − 983 =
  21. 21.223 − 198 =
  22. 22.329 − 278 =
  23. 23.102 − 84 =
  24. 24.210 − 183 =
  25. 25.1011 − 998 =
  26. 26.120 − 91 =
  27. 27.327 − 298 =
  28. 28.106 − 93 =
  29. 29.122 − 77 =
  30. 30.86 − 60 =
  31. 31.93 − 61 =
  32. 32.226 − 185 =
  33. 33.1022 − 976 =
  34. 34.63 − 48 =
  35. 35.115 − 96 =
  36. 36.508 − 492 =
  37. 37.1007 − 989 =
  38. 38.123 − 97 =
  39. 39.325 − 277 =
  40. 40.95 − 59 =

Answer key

  1. 25
  2. 9
  3. 28
  4. 50
  5. 33
  6. 10
  7. 17
  8. 7
  9. 42
  10. 29
  11. 23
  12. 33
  13. 11
  14. 43
  15. 13
  16. 29
  17. 33
  18. 43
  19. 13
  20. 42
  21. 25
  22. 51
  23. 18
  24. 27
  25. 13
  26. 29
  27. 29
  28. 13
  29. 45
  30. 26
  31. 32
  32. 41
  33. 46
  34. 15
  35. 19
  36. 16
  37. 18
  38. 26
  39. 48
  40. 36

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