What is a letter or symbol, used to represent an unknown number called?
a Variable
100
2+j=5
j=3
100
2d=10
d=5
100
2w+5=15
w=5
100
Shaylin had 6 cupcakes and Alycia ate some of them, Shaylin had 2 left for herself. how much did Alycia eat?
Alycia ate 4 cupcakes
200
What is a combination of numbers and operations called?
an Expression
200
n-8=7
n=15
200
7g=21
g=3
200
8/r+3=7
r=2
200
Kayla and Ladina had a collection of rocks; Kayla found 8 rocks, Ladina found some more earlier this morning, Now they had 12 rocks. How much rocks did Ladina find?
Ladina found 4 rocks
300
What is a combination of expressions with an equals sign in the middle called?
an equation
300
30-f=15
f=15
300
5/k=8
k=40
300
6p-4=20
p=4
300
Madison had 15 puppies, Jolene gave her some more for her birthday. Now Madison has 23 puppies. How much puppies did Jolene give Madison for her birthday?
Jolene gave Madison 8 puppies for her birthday
400
What is a number that is added or subtracted to a variable called?
A Constant
400
17+s=25
s=8
400
b/72=9
b=8
400
81/x-4=5
x=9
400
Emily has 6 less than half the amount of monkeys than Paula has.If Paula has 20 monkeys how much does Emily have?
Emily has 4 monkeys
500
what is a number that mutiplys by a variable called?
A coefficient
500
45-t=25
t=20
500
11h=132
h=12
500
12m+20=128
m=9
500
Carly has 5 more than twice the amount of points Aniko has. Carly has 15 points. How much points does Aniko have?