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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 328 · 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. 1.1014 − 996 =
  2. 2.1024 − 993 =
  3. 3.508 − 475 =
  4. 4.223 − 176 =
  5. 5.103 − 93 =
  6. 6.77 − 35 =
  7. 7.501 − 498 =
  8. 8.330 − 297 =
  9. 9.126 − 96 =
  10. 10.310 − 282 =
  11. 11.506 − 493 =
  12. 12.112 − 97 =
  13. 13.501 − 478 =
  14. 14.109 − 62 =
  15. 15.205 − 185 =
  16. 16.1003 − 979 =
  17. 17.85 − 55 =
  18. 18.128 − 77 =
  19. 19.116 − 81 =
  20. 20.312 − 290 =
  21. 21.121 − 90 =
  22. 22.214 − 185 =
  23. 23.104 − 88 =
  24. 24.91 − 58 =
  25. 25.306 − 275 =
  26. 26.309 − 277 =
  27. 27.78 − 43 =
  28. 28.57 − 47 =
  29. 29.1029 − 983 =
  30. 30.214 − 181 =
  31. 31.326 − 287 =
  32. 32.314 − 275 =
  33. 33.323 − 278 =
  34. 34.215 − 182 =
  35. 35.229 − 178 =
  36. 36.127 − 95 =
  37. 37.1003 − 975 =
  38. 38.206 − 196 =
  39. 39.105 − 74 =
  40. 40.105 − 60 =

Answer key

  1. 18
  2. 31
  3. 33
  4. 47
  5. 10
  6. 42
  7. 3
  8. 33
  9. 30
  10. 28
  11. 13
  12. 15
  13. 23
  14. 47
  15. 20
  16. 24
  17. 30
  18. 51
  19. 35
  20. 22
  21. 31
  22. 29
  23. 16
  24. 33
  25. 31
  26. 32
  27. 35
  28. 10
  29. 46
  30. 33
  31. 39
  32. 39
  33. 45
  34. 33
  35. 51
  36. 32
  37. 28
  38. 10
  39. 31
  40. 45

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