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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 901 · 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. 1.106 − 96 =
  2. 2.59 − 42 =
  3. 3.501 − 498 =
  4. 4.101 − 78 =
  5. 5.59 − 44 =
  6. 6.209 − 179 =
  7. 7.65 − 37 =
  8. 8.230 − 196 =
  9. 9.1013 − 991 =
  10. 10.216 − 179 =
  11. 11.51 − 40 =
  12. 12.61 − 34 =
  13. 13.87 − 66 =
  14. 14.205 − 186 =
  15. 15.1009 − 976 =
  16. 16.206 − 193 =
  17. 17.1030 − 991 =
  18. 18.327 − 283 =
  19. 19.516 − 484 =
  20. 20.1016 − 997 =
  21. 21.63 − 30 =
  22. 22.1008 − 988 =
  23. 23.307 − 288 =
  24. 24.324 − 287 =
  25. 25.201 − 197 =
  26. 26.501 − 481 =
  27. 27.229 − 198 =
  28. 28.303 − 281 =
  29. 29.119 − 80 =
  30. 30.529 − 493 =
  31. 31.103 − 93 =
  32. 32.1004 − 998 =
  33. 33.1017 − 981 =
  34. 34.128 − 85 =
  35. 35.95 − 66 =
  36. 36.93 − 63 =
  37. 37.65 − 27 =
  38. 38.306 − 292 =
  39. 39.76 − 48 =
  40. 40.1012 − 994 =

Answer key

  1. 10
  2. 17
  3. 3
  4. 23
  5. 15
  6. 30
  7. 28
  8. 34
  9. 22
  10. 37
  11. 11
  12. 27
  13. 21
  14. 19
  15. 33
  16. 13
  17. 39
  18. 44
  19. 32
  20. 19
  21. 33
  22. 20
  23. 19
  24. 37
  25. 4
  26. 20
  27. 31
  28. 22
  29. 39
  30. 36
  31. 10
  32. 6
  33. 36
  34. 43
  35. 29
  36. 30
  37. 38
  38. 14
  39. 28
  40. 18

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