Expression and Equation

Vocabulary

100

加

add

200

乘

multiply/times

300

减

minus/subtract

400

表达式

expression

500

方程

equation

Simplify Algebraic Expressions

100

8(a+b)

8a +8b

200

(2b+8)5

10b +40

300

m×m×m

m³

400

3c + (8 +4c)

7c+8

500

(x-10) +(3x-6)

4x-16

Simplify Algebraic Expressions 2

100

5×m×n

5mn

200

a+2a+3a

6a

300

b+7b-3b

5b

400

(3x-7)+(6x+9)

9x+2

500

m⁰+2m

2m

Word problem

300

A rectangle has side lengths (2x-5) meters and (2x+6) meters. Write an expression that shows the perimeter of the rectangle.

What is (8x+2)

400

You are ordering T-shirts with our mascot printed on them. Each T-shirt costs $4.75. The printer charges a set up fee of $30 and $2.50 to print each shirt. Write an expression to represent the total cost of printing m amount of T-shirts.

What is m(4.75+2.50) + 30 

OR 7.25m + 30

500

Ex: 5x-37

if x=8，find the value of the expression

3