c + 4= 6
c=2
2x = 18
x=9
2x+4=8
x=2
What is a variable?
A letter that represents an unknown number
What is the name of the toy cowboy in Toy Story?
Woody
t-4=6
t=10
4j =12
j=3
5w-9=6
w=3
What is substitution?
When you replace a variable with a number
What type of fish is Nemo?
A clownfish
4 + h = 24
h=20
g/6=2
g=12
3x-5=7
x=4
What is a ratio?
Comparison of 2 or more things
If you freeze water, what do you get?
Ice
48=t-2
t=50
7=x/2
x=14
f/2 + 6 = 9
f=6
A proportion is also known as an _____ ________.
equivalent ratio
Which ocean is off the California coast?
Pacific Ocean
-20 + v =5
v=25
6=p/5
p=30
-6+a/2=2
a=16
What are inverse operations?
Operations that cancel each other out.
multiplication <--> division
addition <--> subtraction
Which is the fastest land animal?
A cheetah. It can run up to 70 mph.