The document provides notes from lesson 52 in math class. It includes: 1) A review assignment and upcoming test for lesson 52. 2) Five warm-up problems on simplifying expressions and solving equations. 3) An explanation of the order of operations using the mnemonic "Please Excuse My Dear Aunt Sally." 4) Four examples of simplifying mathematical expressions using integers. 5) Three examples of evaluating expressions by substituting values for variables.

1. lesson 52.notebook February 14, 2013
Assignment:
1-->Test #8 Review Handout - Due Monday [2/18]
2-->Test #8 - Monday [2/18]

2. lesson 52.notebook February 14, 2013
Lesson 52 Warm-Up:
1) Simplify: 52 + 33 + 64
2) Compare: 40 in. 100 cm
[ 1 in. = 2.54 cm]
3) Solve: 12 w
15 2.5
4) Divide 70 by 9 and write the answer as a mixed number.
5) Divide 70 by 9 and write the answer as a decimal number with a bar over the
repetend.

3. lesson 52.notebook February 14, 2013
Lesson 52:
FYI...
Order of Operations-->Please -->
Excuse -->
My Dear -->
Aunt Sally -->

4. lesson 52.notebook February 14, 2013
Lesson 52 Examples:
Simplify.
A) 5 + 5 5 - 5 5
B) 50 - 8 5 + 6 3

5. lesson 52.notebook February 14, 2013
C) 24 - 8 - 6 2 4
D) 23 + 32 + 2 5
3

6. lesson 52.notebook February 14, 2013
Evaluate.
E) ab - bc, if a = 5, b = 3, and c = 4
F) ab + a/c, if a = 6, b = 4, and c = 2

7. lesson 52.notebook February 14, 2013
G) x - xy, if x = 2/3 and y = 3/4