Editing Subtraction (section)

====Breaking up the subtraction====
Another method that is useful for [[Mental calculation|mental arithmetic]] is to split up the subtraction into small steps.<ref>[https://sites.google.com/a/oswego308.org/msimester/home/math/algorithms/subtraction The Many Ways of Arithmetic in UCSMP Everyday Mathematics] {{Webarchive|url=https://web.archive.org/web/20140225135251/https://sites.google.com/a/oswego308.org/msimester/home/math/algorithms/subtraction |date=2014-02-25 }} Subtraction: Left to Right Subtraction</ref>

Example:
1234 − 567 = can be solved in the following way:
* 1234 − '''500''' = 734
* 734 − '''60''' = 674
* 674 − '''7''' = 667