Find the value of (13.49 + 12.51) × 13.

The correct answer is 338.

To evaluate the given mathematical expression step-by-step, we follow the order of operations (PEMDAS/BODMAS), which dictates that operations inside parentheses must be calculated first.

Step 1: Perform the addition inside the parentheses.

We need to add 13.49 and 12.51:

$13.49+12.51=26.00$

So, the expression inside the parentheses simplifies to 26.

Step 2: Multiply the result by 13.

Now, substitute 26 back into the original expression and multiply by 13:

$26\times 13=338$

Therefore, the value of (13.49 + 12.51) × 13 is 338.