The expression $10 - 3^2$ follows the order of operations (PEMDAS/BODMAS), where exponents are calculated before subtraction.

1. First, calculate the exponent: $3^2 = 9$.
2. Now, subtract: $10 - 9 = 1$.

So, $10 - 3^2 = 1$.

Would you like more details or have any questions?

Here are 5 related questions for further practice:

1. What is $15 - 4^2$?
2. How do you calculate $12 + 5^2$?
3. Simplify $20 - 2^3$.
4. What is $30 - 5^2$?
5. How do you solve $25 - 3^2$?

Tip: Always remember the order of operations: parentheses, exponents, multiplication and division (from left to right), and addition and subtraction (from left to right).