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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 268 · 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. 1.304 − 278 =
  2. 2.310 − 283 =
  3. 3.312 − 282 =
  4. 4.125 − 80 =
  5. 5.105 − 96 =
  6. 6.115 − 94 =
  7. 7.53 − 43 =
  8. 8.106 − 73 =
  9. 9.82 − 74 =
  10. 10.1009 − 993 =
  11. 11.82 − 72 =
  12. 12.112 − 94 =
  13. 13.517 − 479 =
  14. 14.51 − 41 =
  15. 15.105 − 95 =
  16. 16.92 − 62 =
  17. 17.508 − 493 =
  18. 18.60 − 48 =
  19. 19.126 − 82 =
  20. 20.1023 − 984 =
  21. 21.74 − 38 =
  22. 22.1001 − 980 =
  23. 23.106 − 93 =
  24. 24.1015 − 979 =
  25. 25.1015 − 981 =
  26. 26.65 − 39 =
  27. 27.77 − 48 =
  28. 28.220 − 183 =
  29. 29.201 − 181 =
  30. 30.127 − 84 =
  31. 31.206 − 183 =
  32. 32.66 − 45 =
  33. 33.506 − 491 =
  34. 34.326 − 278 =
  35. 35.87 − 66 =
  36. 36.123 − 93 =
  37. 37.314 − 275 =
  38. 38.75 − 30 =
  39. 39.123 − 77 =
  40. 40.228 − 195 =

Answer key

  1. 26
  2. 27
  3. 30
  4. 45
  5. 9
  6. 21
  7. 10
  8. 33
  9. 8
  10. 16
  11. 10
  12. 18
  13. 38
  14. 10
  15. 10
  16. 30
  17. 15
  18. 12
  19. 44
  20. 39
  21. 36
  22. 21
  23. 13
  24. 36
  25. 34
  26. 26
  27. 29
  28. 37
  29. 20
  30. 43
  31. 23
  32. 21
  33. 15
  34. 48
  35. 21
  36. 30
  37. 39
  38. 45
  39. 46
  40. 33

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