1.
A letter that stands for a number you don’t know yet.
2.
The number multiplied by a variable
3.
A number by itself — it doesn’t change.
4.
Each piece of an expression separated by + or − signs.
5.
A math phrase that has numbers, variables, and operations — but no equals sign.
6.
A math sentence with an equals sign that shows two sides are equal
7.
Make an expression shorter or cleaner by doing all possible math steps.
8.
The number that makes the equation true when you plug it in.
9.
:Used to group parts of an expression — do these first.
11.
equation where the variable’s highest power is 1.
12.
TermA number that doesn’t change (no variable).
14.
with the same variable and exponent.
16.
all operations and combine like terms to make it
18.
both sides equal by doing the same thing to each side.shorter.Substitution
19.
in a number for the variable to check or find an answer.
21.
the value by plugging in numbers and doing the math.
23.
math sentence comparing two values with <, >, ≤, or ≥ instead of =.
25.
no number is written before a variable, it’s really 1.
