56×640-(11258-27×34)+374498

To solve the expression 56×640-(11258-27×34)+374498, we need to follow the order of operations, also known as PEMDAS (Parentheses, Exponents, Multiplication and Division, Addition and Subtraction) rule.

First, let's solve the expressions within parentheses:

56×640 - (11258 - 27×34) + 374498

56×640 - (11258 - 918) + 374498

56×640 - 10340 + 374498

Next, perform the multiplication:

35,840 - 10340 + 374498

Now, we can perform the addition and subtraction:

410138 - 10340

Finally, calculate the subtraction to get the final answer:

399798