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To solve the expression , follow the order of operations (PEMDAS/BODMAS):
1. **Parentheses**: Solve inside the parentheses first.
2. **Multiplication**: Next, perform the multiplication.
3. **Addition**: Finally, perform the addition.
Thus, the correct answer is .
Solve the following equation:
\( 30 - (10 + 7) = \)
Mathematical operations have a specific order that must be followed! If we worked left to right, the expression would equal 20 instead of 14, which breaks mathematical rules.
PEMDAS stands for: Parentheses, Exponents, Multiplication and Division (left to right), Addition and Subtraction (left to right). Remember: "Please Excuse My Dear Aunt Sally!"
Always! Parentheses have the highest priority in PEMDAS. Even if there's just subtraction like , you must solve it first before any other operations.
Go back and check each step carefully! Make sure you followed PEMDAS order. The most common error is doing addition before multiplication, which gives wrong answers.
Yes, but be careful! Most calculators follow PEMDAS automatically, but some simple ones don't. Always double-check by doing the steps manually to understand the process.
Yes! BODMAS stands for Brackets, Orders, Division/Multiplication, Addition/Subtraction. It's the same concept as PEMDAS, just different letters for the same operations.
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