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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 544 · 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. 1.504 − 498 =
  2. 2.113 − 78 =
  3. 3.212 − 176 =
  4. 4.225 − 190 =
  5. 5.508 − 485 =
  6. 6.106 − 68 =
  7. 7.321 − 283 =
  8. 8.1015 − 977 =
  9. 9.520 − 489 =
  10. 10.112 − 90 =
  11. 11.66 − 31 =
  12. 12.1029 − 983 =
  13. 13.520 − 478 =
  14. 14.528 − 476 =
  15. 15.1001 − 991 =
  16. 16.330 − 297 =
  17. 17.1023 − 984 =
  18. 18.1021 − 997 =
  19. 19.124 − 84 =
  20. 20.56 − 42 =
  21. 21.115 − 79 =
  22. 22.86 − 59 =
  23. 23.302 − 277 =
  24. 24.222 − 181 =
  25. 25.1012 − 981 =
  26. 26.83 − 71 =
  27. 27.62 − 44 =
  28. 28.77 − 41 =
  29. 29.114 − 76 =
  30. 30.519 − 489 =
  31. 31.208 − 186 =
  32. 32.85 − 63 =
  33. 33.326 − 290 =
  34. 34.101 − 74 =
  35. 35.224 − 182 =
  36. 36.106 − 67 =
  37. 37.324 − 277 =
  38. 38.203 − 180 =
  39. 39.1019 − 996 =
  40. 40.1010 − 985 =

Answer key

  1. 6
  2. 35
  3. 36
  4. 35
  5. 23
  6. 38
  7. 38
  8. 38
  9. 31
  10. 22
  11. 35
  12. 46
  13. 42
  14. 52
  15. 10
  16. 33
  17. 39
  18. 24
  19. 40
  20. 14
  21. 36
  22. 27
  23. 25
  24. 41
  25. 31
  26. 12
  27. 18
  28. 36
  29. 38
  30. 30
  31. 22
  32. 22
  33. 36
  34. 27
  35. 42
  36. 39
  37. 47
  38. 23
  39. 23
  40. 25

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