Posted by
**Amber** on
.

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.

Saturday

March 25, 2017
Posted by
**Amber** on
.

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.

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