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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 241 · 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 − 82 =
  2. 2.54 − 30 =
  3. 3.315 − 296 =
  4. 4.54 − 47 =
  5. 5.327 − 292 =
  6. 6.104 − 84 =
  7. 7.520 − 488 =
  8. 8.501 − 479 =
  9. 9.313 − 296 =
  10. 10.212 − 197 =
  11. 11.507 − 485 =
  12. 12.201 − 177 =
  13. 13.505 − 492 =
  14. 14.94 − 63 =
  15. 15.58 − 42 =
  16. 16.59 − 36 =
  17. 17.72 − 39 =
  18. 18.1016 − 977 =
  19. 19.115 − 88 =
  20. 20.101 − 85 =
  21. 21.530 − 490 =
  22. 22.224 − 196 =
  23. 23.320 − 297 =
  24. 24.213 − 198 =
  25. 25.219 − 176 =
  26. 26.1001 − 979 =
  27. 27.95 − 74 =
  28. 28.225 − 194 =
  29. 29.513 − 479 =
  30. 30.102 − 69 =
  31. 31.94 − 71 =
  32. 32.93 − 74 =
  33. 33.86 − 78 =
  34. 34.90 − 69 =
  35. 35.69 − 35 =
  36. 36.210 − 188 =
  37. 37.85 − 74 =
  38. 38.317 − 297 =
  39. 39.504 − 493 =
  40. 40.220 − 180 =

Answer key

  1. 47
  2. 24
  3. 19
  4. 7
  5. 35
  6. 20
  7. 32
  8. 22
  9. 17
  10. 15
  11. 22
  12. 24
  13. 13
  14. 31
  15. 16
  16. 23
  17. 33
  18. 39
  19. 27
  20. 16
  21. 40
  22. 28
  23. 23
  24. 15
  25. 43
  26. 22
  27. 21
  28. 31
  29. 34
  30. 33
  31. 23
  32. 19
  33. 8
  34. 21
  35. 34
  36. 22
  37. 11
  38. 20
  39. 11
  40. 40

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