Vocabulary
A symbol that stands for a number
What is a variable?
A number times 4
4n
x + 4 = 17
x = 13
4N + 6 = 42
n=9
The opposite operation
What is an inverse operation?
A number times 2 plus 5
2n+5
n-18=54
72
2N - 8 = 48
N=20
n x 2 = 6
Three times a number minus 8
3n-8
n + 24 = 66
42
(n / 3) + 6 = 36
n=90
A number that has more than one factor pair like 12, 15, or 20.
What is a Composite number?
A number divided by 6 plus 10
(n / 6) + 10
n+204=458
254
5N / 4 = 10
n=8
A number that only has one factor pair like 7, 13, or 19.
a number divided by 8 times 5
(n / 8) X 5
n + 252 = 3,000
2,748
6= 9N / 3
N=2