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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 473 · 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. 1.94 − 62 =
  2. 2.114 − 92 =
  3. 3.508 − 496 =
  4. 4.504 − 481 =
  5. 5.313 − 294 =
  6. 6.81 − 76 =
  7. 7.507 − 475 =
  8. 8.75 − 43 =
  9. 9.70 − 45 =
  10. 10.506 − 495 =
  11. 11.512 − 486 =
  12. 12.53 − 42 =
  13. 13.518 − 498 =
  14. 14.82 − 58 =
  15. 15.53 − 47 =
  16. 16.109 − 97 =
  17. 17.55 − 43 =
  18. 18.120 − 85 =
  19. 19.107 − 77 =
  20. 20.508 − 498 =
  21. 21.210 − 182 =
  22. 22.60 − 41 =
  23. 23.96 − 59 =
  24. 24.228 − 198 =
  25. 25.307 − 281 =
  26. 26.513 − 492 =
  27. 27.106 − 85 =
  28. 28.214 − 196 =
  29. 29.1028 − 985 =
  30. 30.93 − 64 =
  31. 31.68 − 45 =
  32. 32.51 − 40 =
  33. 33.75 − 46 =
  34. 34.515 − 477 =
  35. 35.83 − 61 =
  36. 36.101 − 91 =
  37. 37.1023 − 990 =
  38. 38.104 − 58 =
  39. 39.516 − 477 =
  40. 40.57 − 42 =

Answer key

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

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