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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 778 · 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. 1.123 − 76 =
  2. 2.74 − 33 =
  3. 3.222 − 175 =
  4. 4.120 − 75 =
  5. 5.106 − 75 =
  6. 6.1030 − 979 =
  7. 7.523 − 494 =
  8. 8.312 − 298 =
  9. 9.1011 − 981 =
  10. 10.304 − 298 =
  11. 11.104 − 87 =
  12. 12.57 − 35 =
  13. 13.102 − 73 =
  14. 14.516 − 486 =
  15. 15.1024 − 995 =
  16. 16.99 − 68 =
  17. 17.128 − 78 =
  18. 18.213 − 182 =
  19. 19.113 − 91 =
  20. 20.128 − 92 =
  21. 21.228 − 175 =
  22. 22.507 − 476 =
  23. 23.1030 − 990 =
  24. 24.303 − 292 =
  25. 25.57 − 37 =
  26. 26.214 − 179 =
  27. 27.61 − 35 =
  28. 28.314 − 281 =
  29. 29.201 − 192 =
  30. 30.51 − 46 =
  31. 31.1017 − 975 =
  32. 32.110 − 79 =
  33. 33.313 − 286 =
  34. 34.206 − 184 =
  35. 35.215 − 193 =
  36. 36.60 − 40 =
  37. 37.78 − 47 =
  38. 38.320 − 275 =
  39. 39.106 − 97 =
  40. 40.70 − 48 =

Answer key

  1. 47
  2. 41
  3. 47
  4. 45
  5. 31
  6. 51
  7. 29
  8. 14
  9. 30
  10. 6
  11. 17
  12. 22
  13. 29
  14. 30
  15. 29
  16. 31
  17. 50
  18. 31
  19. 22
  20. 36
  21. 53
  22. 31
  23. 40
  24. 11
  25. 20
  26. 35
  27. 26
  28. 33
  29. 9
  30. 5
  31. 42
  32. 31
  33. 27
  34. 22
  35. 22
  36. 20
  37. 31
  38. 45
  39. 9
  40. 22

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