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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 622 · 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. 1.95 − 75 =
  2. 2.309 − 296 =
  3. 3.122 − 81 =
  4. 4.1016 − 992 =
  5. 5.83 − 74 =
  6. 6.1011 − 984 =
  7. 7.61 − 42 =
  8. 8.318 − 290 =
  9. 9.107 − 80 =
  10. 10.216 − 192 =
  11. 11.69 − 38 =
  12. 12.505 − 496 =
  13. 13.106 − 88 =
  14. 14.120 − 87 =
  15. 15.1028 − 976 =
  16. 16.519 − 480 =
  17. 17.522 − 491 =
  18. 18.213 − 181 =
  19. 19.202 − 193 =
  20. 20.59 − 43 =
  21. 21.214 − 180 =
  22. 22.64 − 27 =
  23. 23.83 − 67 =
  24. 24.70 − 36 =
  25. 25.205 − 192 =
  26. 26.53 − 40 =
  27. 27.68 − 46 =
  28. 28.83 − 60 =
  29. 29.104 − 96 =
  30. 30.67 − 32 =
  31. 31.305 − 281 =
  32. 32.72 − 34 =
  33. 33.507 − 497 =
  34. 34.121 − 83 =
  35. 35.110 − 70 =
  36. 36.310 − 295 =
  37. 37.115 − 79 =
  38. 38.501 − 493 =
  39. 39.1023 − 992 =
  40. 40.1001 − 993 =

Answer key

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

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