Nouns
Part of an expression separated by a plus or a minus.
What is a term?
To put the same kind of things together by adding or subtracting.
What is "to combine like terms"?
Distribute 4(x+3)
What is 4x + 12?
Rewrite 4 + 2y + 12 using the commutative property.
What is 2y + 16? (16 + 2y also acceptable)
15b - 12 where b = 2
What is 18?
A letter that represents a number we don't know.
What is a variable?
To make an expression shorter or easier to work with by combining like terms.
What is "to simplify"?
Distribute 3(2y + 3x)
What is 6y + 9x?
Rewrite 12 - 7x + 7x using the commutative property.
What is 12?
3a - 4b + 11 where a = 3 and b = 2
What is 12?
A number in front of the variable that's part of an expression.
What is a coefficient?
The first step in evaluating: to replace a variable (letter) with a value (number).
What is "to substitute"?
Distribute 6(b - 2)
What is 6b - 12?
Rewrite 2c + 4 - c + 4 using the commutative property.
What is c + 8?
20(6- x) where x = 2
What is 80?
A number all by itself that is part of an expression.
What is a constant?
To “do” the expression by substituting a value into an expression and finding the answer.
What is "to evaluate"?
Distribute -4(2x - 4)
What is -8x + 16?
Rewrite 13a + 4 + (-a) - 2b + 2 using the commutative property.
What is 12a - 2b + 6?
12(3x + 3) - 1 where x = 3
What is 143?
A "number phrase" that contains a variable, constants and coefficients.
What is an expression?
A way of simplifying, to “give” the number outside the parentheses to the ones inside by multiplying.
What is "to distribute"?
Undistribute (Factor!): 3x + 6
What is 3(x + 2)?
Rewrite 12(x - 1) + x using the commutative and distributive properties
What is 13x - 12?
2(x + 3y) where x = 2 and y = 1.
What is 10?