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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 65 · 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. 1.1006 − 982 =
  2. 2.98 − 57 =
  3. 3.119 − 76 =
  4. 4.301 − 283 =
  5. 5.502 − 478 =
  6. 6.202 − 194 =
  7. 7.101 − 97 =
  8. 8.521 − 486 =
  9. 9.315 − 296 =
  10. 10.87 − 78 =
  11. 11.1028 − 992 =
  12. 12.120 − 77 =
  13. 13.68 − 45 =
  14. 14.82 − 77 =
  15. 15.304 − 297 =
  16. 16.104 − 96 =
  17. 17.324 − 289 =
  18. 18.313 − 283 =
  19. 19.98 − 75 =
  20. 20.100 − 65 =
  21. 21.529 − 489 =
  22. 22.94 − 70 =
  23. 23.324 − 281 =
  24. 24.83 − 74 =
  25. 25.304 − 281 =
  26. 26.219 − 185 =
  27. 27.65 − 46 =
  28. 28.1003 − 996 =
  29. 29.92 − 74 =
  30. 30.57 − 47 =
  31. 31.57 − 25 =
  32. 32.505 − 494 =
  33. 33.225 − 182 =
  34. 34.117 − 75 =
  35. 35.510 − 487 =
  36. 36.109 − 73 =
  37. 37.1004 − 996 =
  38. 38.58 − 25 =
  39. 39.322 − 292 =
  40. 40.107 − 92 =

Answer key

  1. 24
  2. 41
  3. 43
  4. 18
  5. 24
  6. 8
  7. 4
  8. 35
  9. 19
  10. 9
  11. 36
  12. 43
  13. 23
  14. 5
  15. 7
  16. 8
  17. 35
  18. 30
  19. 23
  20. 35
  21. 40
  22. 24
  23. 43
  24. 9
  25. 23
  26. 34
  27. 19
  28. 7
  29. 18
  30. 10
  31. 32
  32. 11
  33. 43
  34. 42
  35. 23
  36. 36
  37. 8
  38. 33
  39. 30
  40. 15

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