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McGraw Hill Glencoe Algebra 1, 2012

MH

McGraw Hill Glencoe Algebra 1, 2012 View details

3. Properties of Numbers

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Exercise 11 Page 19

What needs to be evaluated first, according to the order of operations?

The expression simplifies to $1 .$

Step	Action	Property used
1	Subtract term	Substitution
2	$a : b = \frac{a}{b}$	Substitution
3	Rewrite $\frac{3}{4} \cdot \frac{4}{3}$ as $1$	Multiplicative Inverse

Practice makes perfect

According to the order of operations, expressions inside parentheses are calculated first.

\frac{3}{4} [4 \div (7 - 4)]

Subtract term

\frac{3}{4} [4 \div 3]

$a : b = \frac{a}{b}$

\frac{3}{4} \cdot \frac{4}{3}

Rewrite $\frac{3}{4} \cdot \frac{4}{3}$ as $1$

1

The expression simplifies to

1 .

Let's name the property used in each step.

Step	Action	Property used
1	Subtract term	Substitution
2	$a : b = \frac{a}{b}$	Substitution
3	Rewrite $\frac{3}{4} \cdot \frac{4}{3}$ as $1$	Multiplicative Inverse

Subchapter links

Check Your Understanding p.19

Practice and Problem Solving p.19-21

H.O.T. Problems p.21

Standardized Test Practice p.22

Spiral Review p.22

Skills Review p.22