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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 101 · 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. 1.101 − 75 =
  2. 2.317 − 298 =
  3. 3.102 − 66 =
  4. 4.208 − 197 =
  5. 5.57 − 42 =
  6. 6.63 − 42 =
  7. 7.70 − 29 =
  8. 8.84 − 76 =
  9. 9.1013 − 977 =
  10. 10.310 − 277 =
  11. 11.108 − 83 =
  12. 12.104 − 89 =
  13. 13.76 − 30 =
  14. 14.213 − 190 =
  15. 15.112 − 81 =
  16. 16.74 − 40 =
  17. 17.324 − 285 =
  18. 18.503 − 484 =
  19. 19.101 − 61 =
  20. 20.306 − 286 =
  21. 21.95 − 58 =
  22. 22.1025 − 989 =
  23. 23.509 − 496 =
  24. 24.326 − 286 =
  25. 25.67 − 42 =
  26. 26.1005 − 981 =
  27. 27.57 − 43 =
  28. 28.99 − 77 =
  29. 29.305 − 292 =
  30. 30.513 − 495 =
  31. 31.504 − 481 =
  32. 32.105 − 76 =
  33. 33.516 − 492 =
  34. 34.530 − 481 =
  35. 35.99 − 62 =
  36. 36.313 − 296 =
  37. 37.116 − 75 =
  38. 38.528 − 479 =
  39. 39.101 − 70 =
  40. 40.101 − 55 =

Answer key

  1. 26
  2. 19
  3. 36
  4. 11
  5. 15
  6. 21
  7. 41
  8. 8
  9. 36
  10. 33
  11. 25
  12. 15
  13. 46
  14. 23
  15. 31
  16. 34
  17. 39
  18. 19
  19. 40
  20. 20
  21. 37
  22. 36
  23. 13
  24. 40
  25. 25
  26. 24
  27. 14
  28. 22
  29. 13
  30. 18
  31. 23
  32. 29
  33. 24
  34. 49
  35. 37
  36. 17
  37. 41
  38. 49
  39. 31
  40. 46

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