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According to the order of operations, we first solve the exercise within parentheses:
Now we obtain the exercise:
\( 100-(5+55)= \)
Mathematics has a special order of operations (PEMDAS) that's different from reading! Parentheses come first, no matter where they appear in the problem.
Solve each set of parentheses separately first, then continue with the rest of the problem. Work from the innermost parentheses outward if they're nested.
Yes, especially when learning! Writing then helps you avoid mistakes and shows your thinking clearly.
You'll get the wrong answer! Without parentheses, , but with parentheses . Big difference!
Think of parentheses as "do this first" signals. You can also use PEMDAS: Parentheses, Exponents, Multiplication, Division, Addition, Subtraction.
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