Expressions and Equations

Vocabulary

100

The x in: 5 + 4x

What is the variable?

200

The 4 in: 5 + 4x

What is the coefficient?

300

The 5 and 4x in: 5 + 4x

What are the terms?

400

This variable does not depend on another variable for its value. 

independent variable

500

4x+ 8x

What is 4x and 8x

What are like terms?

Writing Expressions

100

8 more than m

m + 8 or 8 + m

200

52 less than y

y - 52

300

The quotient of 50 and D

50 / D

400

Mrs. Stanger made c amount of cookies. Ms. Anderson made 4 more than three times the number of cookies. Write an expression that represents the number of cookies Ms. Anderson made.

3c + 4

500

Kyle went to the fair. It cost $12 to get into the fair, and $5 for each ride. If r stands for the number of rides that Kyle went on, write an expression for the total amount of money Kyle would be spending at the fair. BONUS: How much money would Kyle spend if he went on 4 rides?

12 + 5r BONUS ANSWER: $32.00

Writing Equations

100

The difference of a number and 13 equals 3 Write an equation.

x - 13 = 3

200

the product of 26 and B gives you 130

26b = 130

300

10 less than s is 38

s - 10 = 38

400

A movie theater has r rows of seats. There are 12 seats in each row. Write an equation that tells you the total number of seats, s, in the theater.

s = 12r

500

A guitar teacher charges $25 per hour to teach. Write an equation to find the total number of hours (h) he would need to teach in order to earn $500.

25h=500

Solving Equations

100

Solve  b - 7= 10

b = 17

200

Solve  37 + m = 98

m = 61

300

Solve . 4x=84

x = 21

400

Solve. 81 = 9y

y = 9

500

 Solve. t/3 = 15

t = 45

Random

100

Expression or equation?

7+10

Expression

200

Expression or Equation?

55=8n

Equation

300

4n=t

What is the coefficient? 

4

400

Which variable represents the independent and dependent variable? 

 4n=y

y represents dependent variable

n represents the independent variable

500

Solve if n=18, what would y be?

y=5n

90