Language
What do we call a letter that represents an unknown value?
Variable
If x=4, calculate 2x
Simplify: x+4x
5x
Simplify: 4×x
4x
Simplify: x÷2
x/2
What is the coefficient of x in the expression 4x+7?
4
If a=3, calculate 4a−5.
7
Simplify: 3a+2a−a
4a
Simplify: 3a×5
15a
Simplify: 12a÷3
4a
What is the constant term in the expression 3a+5−2b?
5
If m=2 and n=5, calculate 3m+2n
16
Simplify: 5x+2+3x−7
8x-5
Simplify: 2x×4y
8xy
Simplify: 20x÷5
4x
What do we call a mathematical phrase containing numbers, variables, and operations?
Expression
If x=−2 and y=4, calculate 3x+2y−5
-3
Simplify: 4m−2m+6+1
2m+7
Simplify: 3a×2b×4
Simplify: 18ab÷6
3ab
How many terms are in the expression 5x−2y+8+z?
4
If p=−3, q=2, and r=5, calculate 2p2+3q−r
19
Simplify the expression:
3x+5+2x−1+4x
9x+4
Simplify: 5x×3y×2x
30x2y
Simplify: 24xy÷8y
3x