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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 527 · 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. 1.58 − 47 =
  2. 2.87 − 69 =
  3. 3.127 − 77 =
  4. 4.84 − 76 =
  5. 5.89 − 70 =
  6. 6.329 − 290 =
  7. 7.109 − 63 =
  8. 8.76 − 43 =
  9. 9.126 − 75 =
  10. 10.505 − 495 =
  11. 11.55 − 42 =
  12. 12.220 − 177 =
  13. 13.82 − 64 =
  14. 14.112 − 78 =
  15. 15.1004 − 976 =
  16. 16.319 − 276 =
  17. 17.312 − 279 =
  18. 18.1008 − 997 =
  19. 19.227 − 192 =
  20. 20.68 − 29 =
  21. 21.207 − 188 =
  22. 22.81 − 59 =
  23. 23.93 − 73 =
  24. 24.211 − 187 =
  25. 25.506 − 483 =
  26. 26.101 − 97 =
  27. 27.73 − 39 =
  28. 28.304 − 276 =
  29. 29.78 − 29 =
  30. 30.90 − 55 =
  31. 31.515 − 493 =
  32. 32.111 − 97 =
  33. 33.53 − 32 =
  34. 34.75 − 46 =
  35. 35.311 − 295 =
  36. 36.219 − 184 =
  37. 37.210 − 178 =
  38. 38.95 − 78 =
  39. 39.307 − 288 =
  40. 40.101 − 67 =

Answer key

  1. 11
  2. 18
  3. 50
  4. 8
  5. 19
  6. 39
  7. 46
  8. 33
  9. 51
  10. 10
  11. 13
  12. 43
  13. 18
  14. 34
  15. 28
  16. 43
  17. 33
  18. 11
  19. 35
  20. 39
  21. 19
  22. 22
  23. 20
  24. 24
  25. 23
  26. 4
  27. 34
  28. 28
  29. 49
  30. 35
  31. 22
  32. 14
  33. 21
  34. 29
  35. 16
  36. 35
  37. 32
  38. 17
  39. 19
  40. 34

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