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Master Subtraction with Regrouping: A Step-by-Step Guide

Learn subtraction with regrouping through clear examples and detailed steps to master this essential math skill. Practice with branching techniques to find the final answer easily.

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Master Subtraction with Regrouping: A Step-by-Step Guide

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  1. Subtraction with Regrouping Using Branching

  2. Let’s review our branching steps:

  3. Let’s review our branching steps: Branch the numbers

  4. Let’s review our branching steps: Branch the numbers Work with the ones

  5. Let’s review our branching steps: Branch the numbers Work with the ones Work with the tens

  6. Let’s review our branching steps: Branch the numbers Work with the ones Work with the tens Find a final answer; “box” it

  7. Subtraction Example:42 - 15

  8. Branch the numbers Work with the ones Work with the tens Find a final answer; “box” it

  9. Subtraction Example:42 - 15

  10. Subtraction Example:42 - 15

  11. Subtraction Example:42 - 15 40 + 2

  12. Subtraction Example:42 - 15 40 + 2

  13. Subtraction Example:42 - 15 40 + 2 10 + 5

  14. Branch the numbers Work with the ones Work with the tens Find a final answer; “box” it

  15. Subtraction Example:42 - 15 40 + 2 10 + 5

  16. Subtraction Example:42 - 15 40 + 2 10 + 5 2 - 5

  17. Subtraction Example:42 - 15 40 + 2 10 + 5 2 - 5 Doesn’t work!

  18. Subtraction Example:42 - 15 40 + 2 10 + 5 2 - 5 Doesn’t work! Borrow ten ones!

  19. Subtraction Example:42 - 15 40 + 2 10 + 5 2 - 5 Doesn’t work! Borrow ten ones!

  20. Subtraction Example:42 - 15 30 40 + 2 10 + 5 2 - 5 Doesn’t work! Borrow ten ones!

  21. Subtraction Example:42 - 15 30 40 + 2 10 + 5 2 - 5 Doesn’t work! Borrow ten ones! 12 - 5

  22. Subtraction Example:42 - 15 30 40 + 2 10 + 5 2 - 5 Doesn’t work! Borrow ten ones! 12 - 5 7

  23. Branch the numbers Work with the ones Work with the tens Find a final answer; “box” it

  24. Subtraction Example:42 - 15 30 40 + 2 10 + 5 2 - 5 Doesn’t work! Borrow ten ones! 12 - 5 7

  25. Subtraction Example:42 - 15 30 40 + 2 10 + 5 30 - 10 2 - 5 Doesn’t work! Borrow ten ones! 12 - 5 7

  26. Subtraction Example:42 - 15 30 40 + 2 10 + 5 30 - 10 2 - 5 Doesn’t work! Borrow ten ones! 20 + 12 - 5 7

  27. Subtraction Example:42 - 15 30 40 + 2 10 + 5 30 - 10 2 - 5 Doesn’t work! Borrow ten ones! 20 + 12 - 5 20 + 7

  28. Branch the numbers Work with the ones Work with the tens Find a final answer; “box” it

  29. Subtraction Example:42 - 15 30 40 + 2 10 + 5 30 - 10 2 - 5 Doesn’t work! Borrow ten ones! 20 + 12 - 5 20 + 7

  30. Subtraction Example:42 - 15 30 40 + 2 10 + 5 30 - 10 2 - 5 Doesn’t work! Borrow ten ones! 20 + 12 - 5 20 + 7 =27

  31. Subtraction Example:42 - 15 30 40 + 2 10 + 5 30 - 10 2 - 5 Doesn’t work! Borrow ten ones! 20 + 12 - 5 20 + 7 =27

  32. Let’s Try Another!

  33. Subtraction Example:56 - 29

  34. Subtraction Example:56 - 29

  35. Subtraction Example:56 - 29 50 + 6

  36. Subtraction Example:56 - 29 50 + 6

  37. Subtraction Example:56 - 29 50 + 6 20 + 9

  38. Subtraction Example:56 - 29 50 + 6 20 + 9 6 - 9

  39. Subtraction Example:56 - 29 50 + 6 20 + 9 6 - 9 Doesn’t work!

  40. Subtraction Example:56 - 29 50 + 6 20 + 9 6 - 9 Doesn’t work! Borrow ten ones!

  41. Subtraction Example:56 - 29 50 + 6 20 + 9 6 - 9 Doesn’t work! Borrow ten ones!

  42. Subtraction Example:56 - 29 40 50 + 6 20 + 9 6 - 9 Doesn’t work! Borrow ten ones!

  43. Subtraction Example:56 - 29 40 50 + 6 20 + 9 6 - 9 Doesn’t work! Borrow ten ones! 16 - 9

  44. Subtraction Example:56 - 29 40 50 + 6 20 + 9 6 - 9 Doesn’t work! Borrow ten ones! 16 - 9 7

  45. Subtraction Example:56 - 29 40 50 + 6 20 + 9 40 - 20 6 - 9 Doesn’t work! Borrow ten ones! 16 - 9 7

  46. Subtraction Example:56 - 29 40 50 + 6 20 + 9 40 - 20 6 - 9 Doesn’t work! Borrow ten ones! 20 + 16 - 9 7

  47. Subtraction Example:56 - 29 40 50 + 6 20 + 9 40 - 20 6 - 9 Doesn’t work! Borrow ten ones! 20 + 16 - 9 20 + 7

  48. Subtraction Example:56 - 29 40 50 + 6 20 + 9 40 - 20 6 - 9 Doesn’t work! Borrow ten ones! 20 + 16 - 9 20 + 7 =27

  49. Subtraction Example:56 - 29 40 50 + 6 20 + 9 40 - 20 6 - 9 Doesn’t work! Borrow ten ones! 20 + 16 - 9 20 + 7 =27

  50. How about one more?

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