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Subtraction by Counting Up Worksheet

Mental maths lesson 5: Subtract by counting up · Set 318 · 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. 1.202 − 188 =
  2. 2.1029 − 988 =
  3. 3.103 − 64 =
  4. 4.96 − 70 =
  5. 5.124 − 76 =
  6. 6.1001 − 984 =
  7. 7.77 − 29 =
  8. 8.67 − 48 =
  9. 9.102 − 69 =
  10. 10.317 − 280 =
  11. 11.515 − 486 =
  12. 12.86 − 78 =
  13. 13.53 − 36 =
  14. 14.524 − 486 =
  15. 15.102 − 75 =
  16. 16.1003 − 978 =
  17. 17.503 − 498 =
  18. 18.1004 − 978 =
  19. 19.513 − 488 =
  20. 20.67 − 33 =
  21. 21.202 − 177 =
  22. 22.305 − 287 =
  23. 23.55 − 39 =
  24. 24.107 − 97 =
  25. 25.104 − 72 =
  26. 26.62 − 34 =
  27. 27.1011 − 998 =
  28. 28.529 − 480 =
  29. 29.90 − 77 =
  30. 30.84 − 70 =
  31. 31.97 − 77 =
  32. 32.1005 − 975 =
  33. 33.316 − 277 =
  34. 34.56 − 39 =
  35. 35.514 − 497 =
  36. 36.1002 − 993 =
  37. 37.65 − 31 =
  38. 38.515 − 498 =
  39. 39.1027 − 986 =
  40. 40.523 − 477 =

Answer key

  1. 14
  2. 41
  3. 39
  4. 26
  5. 48
  6. 17
  7. 48
  8. 19
  9. 33
  10. 37
  11. 29
  12. 8
  13. 17
  14. 38
  15. 27
  16. 25
  17. 5
  18. 26
  19. 25
  20. 34
  21. 25
  22. 18
  23. 16
  24. 10
  25. 32
  26. 28
  27. 13
  28. 49
  29. 13
  30. 14
  31. 20
  32. 30
  33. 39
  34. 17
  35. 17
  36. 9
  37. 34
  38. 17
  39. 41
  40. 46

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