# 7th Grade Math-Exponents

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.

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.