Chapter 3
Page 182
Do You Know How?
Do You Understand?
Order of Operations (3-13)
Use the order of operations to
evaluate each expression.
1.
9 – 4 ÷ 2
2.
31 – (7 + 2) x 3
3.
8 + 10 x 4
4.
10 x 8 – 3 x 2
5.
(8 + 6) ÷ 7
6.
(9 + 1) ÷ (8 – 3)
7.
7 x 3 – 6 x 1 + 2 x 5
Explain how you used the order of
operations to evaluate each
expression in Exercises 1 and 2.
In Exercise 3, rewrite the
expression with parentheses that
do not change the answer.
Graphing Ordered Pairs (3-14)
Use the grid below. Write the ordered
pair for each point.
Tell how you found each ordered
pair.
Does it matter which coordinate is
written first in an ordered pair? Tell
why or why not.
Which point is located at (5, 6)?
8.
R
9.
S
10.
T
Rules, Tables, and Graphs (3-15)
Create a table for each rule. Use at least
four values for
x
.
11.
Add 7:
x
+ 7
12.
Multiply by 2 and then add 2:
2
x
+ 2
Theresa is given the rule
subtract 4
.
How can she find an ordered pair
for this rule?
Theresa’s friend says (3,7) will be
on the graph for the rule
subtract 4
. Is
her friend correct? Explain.