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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 728 · 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. 1.205 − 192 =
  2. 2.501 − 476 =
  3. 3.93 − 70 =
  4. 4.215 − 183 =
  5. 5.61 − 48 =
  6. 6.114 − 78 =
  7. 7.1001 − 994 =
  8. 8.304 − 281 =
  9. 9.101 − 71 =
  10. 10.214 − 177 =
  11. 11.325 − 296 =
  12. 12.203 − 179 =
  13. 13.520 − 484 =
  14. 14.124 − 86 =
  15. 15.205 − 190 =
  16. 16.1008 − 992 =
  17. 17.1017 − 998 =
  18. 18.62 − 47 =
  19. 19.326 − 283 =
  20. 20.81 − 69 =
  21. 21.1027 − 992 =
  22. 22.302 − 280 =
  23. 23.314 − 296 =
  24. 24.71 − 32 =
  25. 25.314 − 278 =
  26. 26.92 − 74 =
  27. 27.307 − 276 =
  28. 28.102 − 62 =
  29. 29.83 − 74 =
  30. 30.62 − 32 =
  31. 31.1027 − 983 =
  32. 32.213 − 176 =
  33. 33.110 − 58 =
  34. 34.78 − 47 =
  35. 35.1008 − 998 =
  36. 36.305 − 275 =
  37. 37.124 − 87 =
  38. 38.104 − 64 =
  39. 39.501 − 481 =
  40. 40.1027 − 982 =

Answer key

  1. 13
  2. 25
  3. 23
  4. 32
  5. 13
  6. 36
  7. 7
  8. 23
  9. 30
  10. 37
  11. 29
  12. 24
  13. 36
  14. 38
  15. 15
  16. 16
  17. 19
  18. 15
  19. 43
  20. 12
  21. 35
  22. 22
  23. 18
  24. 39
  25. 36
  26. 18
  27. 31
  28. 40
  29. 9
  30. 30
  31. 44
  32. 37
  33. 52
  34. 31
  35. 10
  36. 30
  37. 37
  38. 40
  39. 20
  40. 45

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