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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 927 · 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. 1.100 − 77 =
  2. 2.301 − 295 =
  3. 3.310 − 293 =
  4. 4.205 − 194 =
  5. 5.74 − 31 =
  6. 6.203 − 198 =
  7. 7.81 − 72 =
  8. 8.1007 − 977 =
  9. 9.528 − 497 =
  10. 10.207 − 181 =
  11. 11.87 − 60 =
  12. 12.523 − 496 =
  13. 13.122 − 87 =
  14. 14.301 − 279 =
  15. 15.53 − 27 =
  16. 16.308 − 275 =
  17. 17.118 − 88 =
  18. 18.123 − 94 =
  19. 19.112 − 94 =
  20. 20.82 − 74 =
  21. 21.215 − 192 =
  22. 22.510 − 482 =
  23. 23.120 − 78 =
  24. 24.525 − 477 =
  25. 25.124 − 98 =
  26. 26.1025 − 996 =
  27. 27.1017 − 990 =
  28. 28.514 − 480 =
  29. 29.78 − 41 =
  30. 30.328 − 296 =
  31. 31.1019 − 982 =
  32. 32.505 − 486 =
  33. 33.1011 − 996 =
  34. 34.1008 − 994 =
  35. 35.110 − 91 =
  36. 36.88 − 74 =
  37. 37.1017 − 982 =
  38. 38.95 − 68 =
  39. 39.66 − 28 =
  40. 40.87 − 63 =

Answer key

  1. 23
  2. 6
  3. 17
  4. 11
  5. 43
  6. 5
  7. 9
  8. 30
  9. 31
  10. 26
  11. 27
  12. 27
  13. 35
  14. 22
  15. 26
  16. 33
  17. 30
  18. 29
  19. 18
  20. 8
  21. 23
  22. 28
  23. 42
  24. 48
  25. 26
  26. 29
  27. 27
  28. 34
  29. 37
  30. 32
  31. 37
  32. 19
  33. 15
  34. 14
  35. 19
  36. 14
  37. 35
  38. 27
  39. 38
  40. 24

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