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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 831 · 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. 1.52 − 48 =
  2. 2.1005 − 977 =
  3. 3.520 − 483 =
  4. 4.318 − 293 =
  5. 5.105 − 56 =
  6. 6.225 − 184 =
  7. 7.91 − 68 =
  8. 8.109 − 59 =
  9. 9.55 − 43 =
  10. 10.523 − 489 =
  11. 11.65 − 39 =
  12. 12.229 − 184 =
  13. 13.119 − 76 =
  14. 14.206 − 185 =
  15. 15.516 − 494 =
  16. 16.64 − 29 =
  17. 17.320 − 292 =
  18. 18.91 − 64 =
  19. 19.328 − 295 =
  20. 20.90 − 56 =
  21. 21.102 − 57 =
  22. 22.523 − 498 =
  23. 23.1025 − 991 =
  24. 24.127 − 75 =
  25. 25.228 − 191 =
  26. 26.502 − 495 =
  27. 27.222 − 195 =
  28. 28.106 − 72 =
  29. 29.312 − 281 =
  30. 30.518 − 490 =
  31. 31.54 − 34 =
  32. 32.52 − 32 =
  33. 33.63 − 25 =
  34. 34.319 − 289 =
  35. 35.328 − 276 =
  36. 36.119 − 89 =
  37. 37.60 − 31 =
  38. 38.530 − 498 =
  39. 39.302 − 288 =
  40. 40.1010 − 977 =

Answer key

  1. 4
  2. 28
  3. 37
  4. 25
  5. 49
  6. 41
  7. 23
  8. 50
  9. 12
  10. 34
  11. 26
  12. 45
  13. 43
  14. 21
  15. 22
  16. 35
  17. 28
  18. 27
  19. 33
  20. 34
  21. 45
  22. 25
  23. 34
  24. 52
  25. 37
  26. 7
  27. 27
  28. 34
  29. 31
  30. 28
  31. 20
  32. 20
  33. 38
  34. 30
  35. 52
  36. 30
  37. 29
  38. 32
  39. 14
  40. 33

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