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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 594 · 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. 1.129 − 79 =
  2. 2.105 − 69 =
  3. 3.74 − 35 =
  4. 4.501 − 484 =
  5. 5.529 − 487 =
  6. 6.80 − 31 =
  7. 7.524 − 493 =
  8. 8.205 − 180 =
  9. 9.317 − 298 =
  10. 10.220 − 183 =
  11. 11.313 − 284 =
  12. 12.504 − 496 =
  13. 13.1005 − 995 =
  14. 14.322 − 280 =
  15. 15.81 − 58 =
  16. 16.317 − 294 =
  17. 17.78 − 27 =
  18. 18.201 − 196 =
  19. 19.123 − 98 =
  20. 20.202 − 194 =
  21. 21.90 − 55 =
  22. 22.318 − 293 =
  23. 23.1003 − 996 =
  24. 24.504 − 476 =
  25. 25.1001 − 993 =
  26. 26.1007 − 981 =
  27. 27.506 − 488 =
  28. 28.97 − 67 =
  29. 29.115 − 96 =
  30. 30.320 − 290 =
  31. 31.105 − 80 =
  32. 32.69 − 45 =
  33. 33.58 − 40 =
  34. 34.99 − 64 =
  35. 35.107 − 83 =
  36. 36.98 − 77 =
  37. 37.522 − 496 =
  38. 38.218 − 193 =
  39. 39.311 − 288 =
  40. 40.311 − 293 =

Answer key

  1. 50
  2. 36
  3. 39
  4. 17
  5. 42
  6. 49
  7. 31
  8. 25
  9. 19
  10. 37
  11. 29
  12. 8
  13. 10
  14. 42
  15. 23
  16. 23
  17. 51
  18. 5
  19. 25
  20. 8
  21. 35
  22. 25
  23. 7
  24. 28
  25. 8
  26. 26
  27. 18
  28. 30
  29. 19
  30. 30
  31. 25
  32. 24
  33. 18
  34. 35
  35. 24
  36. 21
  37. 26
  38. 25
  39. 23
  40. 18

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