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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 158 · 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. 1.76 − 44 =
  2. 2.56 − 27 =
  3. 3.79 − 47 =
  4. 4.229 − 188 =
  5. 5.57 − 42 =
  6. 6.128 − 92 =
  7. 7.92 − 68 =
  8. 8.96 − 78 =
  9. 9.519 − 486 =
  10. 10.105 − 77 =
  11. 11.79 − 41 =
  12. 12.107 − 95 =
  13. 13.1010 − 989 =
  14. 14.304 − 296 =
  15. 15.307 − 298 =
  16. 16.117 − 85 =
  17. 17.308 − 276 =
  18. 18.310 − 275 =
  19. 19.80 − 37 =
  20. 20.517 − 477 =
  21. 21.521 − 493 =
  22. 22.77 − 40 =
  23. 23.217 − 177 =
  24. 24.60 − 26 =
  25. 25.211 − 186 =
  26. 26.84 − 73 =
  27. 27.113 − 79 =
  28. 28.119 − 77 =
  29. 29.64 − 31 =
  30. 30.328 − 292 =
  31. 31.67 − 43 =
  32. 32.89 − 60 =
  33. 33.84 − 77 =
  34. 34.326 − 292 =
  35. 35.102 − 66 =
  36. 36.110 − 78 =
  37. 37.507 − 498 =
  38. 38.125 − 93 =
  39. 39.109 − 76 =
  40. 40.230 − 181 =

Answer key

  1. 32
  2. 29
  3. 32
  4. 41
  5. 15
  6. 36
  7. 24
  8. 18
  9. 33
  10. 28
  11. 38
  12. 12
  13. 21
  14. 8
  15. 9
  16. 32
  17. 32
  18. 35
  19. 43
  20. 40
  21. 28
  22. 37
  23. 40
  24. 34
  25. 25
  26. 11
  27. 34
  28. 42
  29. 33
  30. 36
  31. 24
  32. 29
  33. 7
  34. 34
  35. 36
  36. 32
  37. 9
  38. 32
  39. 33
  40. 49

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