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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 525 · 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. 1.127 − 94 =
  2. 2.53 − 35 =
  3. 3.527 − 492 =
  4. 4.202 − 198 =
  5. 5.510 − 480 =
  6. 6.92 − 72 =
  7. 7.530 − 487 =
  8. 8.1016 − 981 =
  9. 9.319 − 285 =
  10. 10.222 − 190 =
  11. 11.1001 − 987 =
  12. 12.305 − 283 =
  13. 13.216 − 185 =
  14. 14.526 − 479 =
  15. 15.303 − 292 =
  16. 16.85 − 62 =
  17. 17.524 − 481 =
  18. 18.1001 − 993 =
  19. 19.84 − 68 =
  20. 20.104 − 91 =
  21. 21.203 − 197 =
  22. 22.100 − 60 =
  23. 23.208 − 195 =
  24. 24.103 − 77 =
  25. 25.302 − 276 =
  26. 26.90 − 77 =
  27. 27.65 − 45 =
  28. 28.112 − 76 =
  29. 29.519 − 484 =
  30. 30.107 − 77 =
  31. 31.1030 − 998 =
  32. 32.502 − 478 =
  33. 33.1025 − 975 =
  34. 34.323 − 288 =
  35. 35.79 − 25 =
  36. 36.54 − 32 =
  37. 37.1024 − 995 =
  38. 38.82 − 67 =
  39. 39.55 − 38 =
  40. 40.202 − 177 =

Answer key

  1. 33
  2. 18
  3. 35
  4. 4
  5. 30
  6. 20
  7. 43
  8. 35
  9. 34
  10. 32
  11. 14
  12. 22
  13. 31
  14. 47
  15. 11
  16. 23
  17. 43
  18. 8
  19. 16
  20. 13
  21. 6
  22. 40
  23. 13
  24. 26
  25. 26
  26. 13
  27. 20
  28. 36
  29. 35
  30. 30
  31. 32
  32. 24
  33. 50
  34. 35
  35. 54
  36. 22
  37. 29
  38. 15
  39. 17
  40. 25

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