Why borrowing works
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| Learn more: http://www.khanacademy.org/video?v=fWan_T0enj4 An explanation of why (not how) borrowing/regrouping works when subtracting numbers. |
| Category: | Education |
| Rating: | ![]() ![]() ![]() ![]() ![]() |
| Watched: | 189,124 times |
| Duration: | 08:33 |