Expressions and Equations

Vocabulary

100

Another word for numbers used in expressions and equations

Constant

200

A combination of operations, numbers and variables (letters) with no equal sign.

Expression

300

Another word for the letters used in expressions and equations.

Variable

400

What type of math where numbers and symbols are used to formulate expressions and equations.

THIS IS WORTH DOUBLE POINTS

Algebra

THIS IS WORTH DOUBLE POINTS

500

This type of math problem has an equal sign.

Equation

Writing Equations

100

The product of c and 23 is 322

23c = 322

200

The sum of y and 85 is 123

y = 85 = 123

300

The quotient of x and 15 is 210

x/15 = 210

400

The product of a number y and 27 is 243

27y = 243

500

43 less than h is 25

h - 43 = 25

One step equations

100

x + 5 = - 9

-14

200

x/10 = 3

30

300

x - 8 = -10

-2

400

20 = x + 4

16

500

8x = -64

-8

Simplify Expressions

100

Simplify:

3x - 9x

-6x

200

Simplify:

3(x+2)

3x + 6

300

Simplify:

10x + 7 -4x-(-15)

6x + 22

400

Simplify:

9 + 7x - 11 - 12x

-5x - 2

500

Simplify

-4 (m + 9)

THIS IS WORTH DOUBLE POINTS

-4m - 36

THIS IS WORTH DOUBLE POINTS

Word Problems (Double)

100

If a basketball player averaged 32 points per game last season over the course of 35 games, how many total points did he score?

1120

200

One number is 6 less than another. Their sum is 64. find the numbers.

x + x - 6 = 64

2x = 70

x = 35

small = 29, big = 35

300

TriCity Taxi Company charges $3 for the first mile and $0.20 for every tenth of a mile thereafter. If your trip is measured in tenths of a mile, how far can you ride in a TriCity Taxi for $12.

.20x + 3 = 12

.20x = 9

x = 45 miles

400

Jennifer’s telephone service costs $30 per month plus $0.15 for each local call. Long distance calls are extra. Last month, her bill was $63.50, and it included $18.50 in long distance charges. How many local calls did she make?

30 + 18.50 +.15x = 63.50

.15x = 15

x = 100 local calls

500

The difference between two numbers is 24. Find the numbers if their sum is 88.

x - y = 24   -----> x = 24 +y

x + y = 88 ------> 24 + y +y =88

2y = 64

y = 32 and x =56