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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 159 · 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. 1.502 − 489 =
  2. 2.201 − 196 =
  3. 3.109 − 72 =
  4. 4.1030 − 981 =
  5. 5.62 − 46 =
  6. 6.104 − 78 =
  7. 7.74 − 34 =
  8. 8.328 − 281 =
  9. 9.90 − 67 =
  10. 10.130 − 97 =
  11. 11.65 − 33 =
  12. 12.301 − 275 =
  13. 13.107 − 88 =
  14. 14.319 − 291 =
  15. 15.75 − 27 =
  16. 16.306 − 275 =
  17. 17.65 − 25 =
  18. 18.309 − 280 =
  19. 19.51 − 37 =
  20. 20.518 − 483 =
  21. 21.504 − 479 =
  22. 22.95 − 65 =
  23. 23.125 − 97 =
  24. 24.104 − 73 =
  25. 25.91 − 76 =
  26. 26.205 − 193 =
  27. 27.86 − 78 =
  28. 28.314 − 298 =
  29. 29.97 − 74 =
  30. 30.72 − 46 =
  31. 31.516 − 495 =
  32. 32.106 − 87 =
  33. 33.209 − 193 =
  34. 34.74 − 30 =
  35. 35.82 − 65 =
  36. 36.90 − 63 =
  37. 37.104 − 58 =
  38. 38.90 − 61 =
  39. 39.53 − 28 =
  40. 40.79 − 27 =

Answer key

  1. 13
  2. 5
  3. 37
  4. 49
  5. 16
  6. 26
  7. 40
  8. 47
  9. 23
  10. 33
  11. 32
  12. 26
  13. 19
  14. 28
  15. 48
  16. 31
  17. 40
  18. 29
  19. 14
  20. 35
  21. 25
  22. 30
  23. 28
  24. 31
  25. 15
  26. 12
  27. 8
  28. 16
  29. 23
  30. 26
  31. 21
  32. 19
  33. 16
  34. 44
  35. 17
  36. 27
  37. 46
  38. 29
  39. 25
  40. 52

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