Posted by **Amber** on Thursday, December 16, 2010 at 3:26pm.

I don't understand this at all! Please help!

Find the units digit for 7^197 without using a calculator. Explain how you found your answer.

- 7th Grade Math-Exponents -
**uihuhui**, Tuesday, August 9, 2011 at 5:22pm
guiuyjhvvujhkjkb;

- 7th Grade Math-Exponents -
**Anonymous**, Thursday, September 29, 2011 at 11:14pm
5+3(16-20)+7

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