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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 720 · 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. 1.321 − 281 =
  2. 2.105 − 93 =
  3. 3.65 − 31 =
  4. 4.1025 − 978 =
  5. 5.66 − 48 =
  6. 6.510 − 493 =
  7. 7.310 − 279 =
  8. 8.1022 − 985 =
  9. 9.1009 − 984 =
  10. 10.69 − 30 =
  11. 11.1007 − 998 =
  12. 12.202 − 193 =
  13. 13.101 − 76 =
  14. 14.1007 − 976 =
  15. 15.89 − 77 =
  16. 16.513 − 489 =
  17. 17.103 − 60 =
  18. 18.67 − 31 =
  19. 19.530 − 492 =
  20. 20.125 − 83 =
  21. 21.101 − 90 =
  22. 22.102 − 73 =
  23. 23.212 − 179 =
  24. 24.518 − 492 =
  25. 25.529 − 495 =
  26. 26.60 − 48 =
  27. 27.109 − 62 =
  28. 28.1024 − 992 =
  29. 29.127 − 94 =
  30. 30.80 − 43 =
  31. 31.304 − 277 =
  32. 32.130 − 85 =
  33. 33.75 − 37 =
  34. 34.51 − 43 =
  35. 35.59 − 25 =
  36. 36.527 − 480 =
  37. 37.101 − 66 =
  38. 38.1022 − 980 =
  39. 39.225 − 198 =
  40. 40.509 − 480 =

Answer key

  1. 40
  2. 12
  3. 34
  4. 47
  5. 18
  6. 17
  7. 31
  8. 37
  9. 25
  10. 39
  11. 9
  12. 9
  13. 25
  14. 31
  15. 12
  16. 24
  17. 43
  18. 36
  19. 38
  20. 42
  21. 11
  22. 29
  23. 33
  24. 26
  25. 34
  26. 12
  27. 47
  28. 32
  29. 33
  30. 37
  31. 27
  32. 45
  33. 38
  34. 8
  35. 34
  36. 47
  37. 35
  38. 42
  39. 27
  40. 29

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