2.1 times 10 to the power of negative one

\( 2.1 \times 10^{-1} \) means multiplying 2.1 by 0.1, which is the same as moving the decimal point one place to the left.

\[
2.1 \times 10^{-1} = 0.21
\]

So, the result is **0.21**.

Would you like more details on how powers of ten work? Here are 5 related questions to consider:

1. What happens if you multiply by \(10^{-2}\) instead of \(10^{-1}\)?
2. How do negative exponents affect decimal movement?
3. Can you convert \(0.21\) back to scientific notation?
4. How would \(2.1 \times 10^1\) compare to \(2.1 \times 10^{-1}\)?
5. How does multiplying by \(10^0\) affect a number?

**Tip**: Negative exponents in scientific notation represent small numbers less than 1, while positive exponents represent larger numbers.

Discover how to simplify 2.1 × 10^-1 and convert it to its decimal form, 0.21. This guide covers key concepts like powers of ten, negative exponents, and scientific notation. Ideal for students in Grades 6-8.

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