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Glencoe Math: Course 2, Volume 1

GM

Glencoe Math: Course 2, Volume 1 View details

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Exercise 3 Page 190

Pay close attention to the order of operations.

24

Practice makes perfect

According to the order of operations, expressions inside parentheses are evaluated first, followed by exponents, then multiplication and division, and finally addition and subtraction are evaluated last. We can use the acronym PEMDAS to help us remember the correct order!

pemdas

For the given expression, this means evaluating the expression inside the parentheses completely before adding the product. 18+2(4-1) Let's do it!

Operation	Before Simplification	After Simplification
Subtract terms	18 + 2(4 - 1)	18 + 2( 3)
Multiply	18 + 2(3)	18+ 6
Add terms	18 + 6	24

The expression is equal to 24.

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Quick Check p.190