G6 Expressions & Equations

Vocabulary

100

This type of math problem has no equal sign. 

Expression 

200

This type of math problem has an equal sign

Equation

300

What is the acronym for order of operations? 

PEMDAS

400

Another word for the letters used in expressions and equations 

Variable 

500

The "cause" and "effect" variables

Hint: If _____ happens, then ____ happens

Independent and Dependent variables

One step Equations

100

2x + 1 = 5

x=2

200

x/4-4=4

x=32

300

3+4^t

Evaluate the expression when t is 1

Evaluate the expression when t is 3

t=7

t=67

400

^{x/10 = 3} 

30

500

164 = 48 + x

116

Simplify Expressions

100

Simplify:

3(x+2)

3x + 6

200

4 (m + 9)

4m+36

300

20(20+2x)

400+40x

400

5(2𝑥 + 14)=

10x+70

500

Evaluate 7r−15/s when r =3 and s=5

18

Review

100

Write an equivalent expression to  8^3. 

8x8x8

512

200

3/5 of students in school are in sixth grade 

a. How many 6th graders are there if the school has 50 students

b. How many sixth graders are there if the school has 35 students?

 

a: 30

b: 21

300

What is 4x² when x = 6?

 

x = 144

400

Deja notices that for every assignment she completes, she receives 2 1/2 Scholar Dollars from Mr. Doyle. By the end of the week, she received 17 1/2 Scholar Dollars.

A. What are the INDEPENDENT and DEPENDENT variables in the situation?

B. Create an expression that represents the situation

C. How many assignments did she complete to earn $17.50?

A. Independent: Assignments completed  Dependent: Amount of Scholar Dollars earned

B. 2.50x

C. She completed 7 assignments

500

What is 2^6? 

64