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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 431 · 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. 1.219 − 194 =
  2. 2.93 − 68 =
  3. 3.127 − 86 =
  4. 4.208 − 184 =
  5. 5.308 − 287 =
  6. 6.101 − 64 =
  7. 7.1003 − 985 =
  8. 8.58 − 42 =
  9. 9.1013 − 991 =
  10. 10.201 − 193 =
  11. 11.1009 − 983 =
  12. 12.505 − 493 =
  13. 13.79 − 38 =
  14. 14.77 − 32 =
  15. 15.1012 − 995 =
  16. 16.92 − 74 =
  17. 17.518 − 495 =
  18. 18.104 − 72 =
  19. 19.226 − 178 =
  20. 20.100 − 56 =
  21. 21.68 − 48 =
  22. 22.116 − 94 =
  23. 23.220 − 179 =
  24. 24.106 − 55 =
  25. 25.519 − 485 =
  26. 26.506 − 496 =
  27. 27.106 − 72 =
  28. 28.223 − 176 =
  29. 29.308 − 293 =
  30. 30.307 − 294 =
  31. 31.91 − 77 =
  32. 32.97 − 59 =
  33. 33.204 − 188 =
  34. 34.1003 − 983 =
  35. 35.56 − 35 =
  36. 36.119 − 94 =
  37. 37.217 − 190 =
  38. 38.506 − 490 =
  39. 39.88 − 66 =
  40. 40.520 − 496 =

Answer key

  1. 25
  2. 25
  3. 41
  4. 24
  5. 21
  6. 37
  7. 18
  8. 16
  9. 22
  10. 8
  11. 26
  12. 12
  13. 41
  14. 45
  15. 17
  16. 18
  17. 23
  18. 32
  19. 48
  20. 44
  21. 20
  22. 22
  23. 41
  24. 51
  25. 34
  26. 10
  27. 34
  28. 47
  29. 15
  30. 13
  31. 14
  32. 38
  33. 16
  34. 20
  35. 21
  36. 25
  37. 27
  38. 16
  39. 22
  40. 24

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