Expressions and 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 a prime number?

A number with only one factor pair

400

Another word for the letters used in expressions and equations.

Variable

500

What is a composite mumber?

A Number with more than one factor pair

Equations

100

x/6 = 5

x=30

200

x-8=11

x=19

300

x-5=11

x=16

400

6+S= 42+7 X9

S=99

500

C+7=41-3

C= 31

Equations

100

x/10 = 3

30

200

8x = 64

8

300

x + 5 = 9

4

400

x - 8 = 10

18

500

20 = x + 4

16

PEMDAS

100

6x2 +7-4

15

200

9/3 +8 -2

9

300

2+5-7+5

5

400

8X7/2+1

29

500

1+1-1/1

1

HARD

100

S-9=6+8-9

14

200

What does PEMDAS stand for?

Talk through with teacher

300

Is 17 Prime or Composite?

Prime

400

Is 31 Prime or composite 

Prime

500

is 63 Prime or composite? 

Composite