Exercise 2 Page 19

What gets calculated first, accorcding to the order of operations?

The expression simplifies to 22.

Step	Action	Property used
1	Subtract term	Substitution
2	Multiply	Substitution
3	Add terms	Substitution

Practice makes perfect

We can start by evaluating the expression and then we will name the property used in each step. According to the order of operations, expressions inside parentheses are calculated first.

6+4(19-15)

SubTerm

Subtract term

6+4* 4

Multiply

6+16

AddTerms

Add terms

The expression simplifies to 22. Now, let's name the property used in each step.

Step	Action	Property used
1	Subtract term	Substitution
2	Multiply	Substitution
3	Add terms	Substitution

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

Exercise 2 Page 19

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