Math vocabulary

Question 1

Variable

Answer 1

A symbol, usually a letter, used to represent a number.

Question 2

What is the variable in X +2?

Answer 2

X is the Variable

Question 3

What property is this “7+9 = 9+7”

Answer 3

Commutative Property: the order in which 2 numbers are added or multiplied doesn’t change their sum or product

Question 4

What property is this “3 + (9 + 4) = (3 + 9) + 4”

Answer 4

Associative Property: the way in which 3 numbers are added or multiplied doesn’t change their sum or product

Question 5

What property is this “13 + 0 = 13” or “7 x 1 = 7”

Answer 5

Identity Property: the sum of and addend and 0 is the addend. The product of a factor and 1 is the factor.

Question 6

What are the terms?
3x + 7 + x

Answer 6

3x, 7, x
Each part separated by addition or subtraction signs in an algebraic expression.

Question 7

What is the coefficient? 3x

Answer 7

3, the numerical factor of a term

Question 8

Which is the constant?
3x + 7 + x

Answer 8

7, a term without a variable

Question 9

Which are the “like terms”?
4 + 2x + x

Answer 9

2x and x, like terms contain the same variable (in this example the variable is x)

Question 10

What is the sum?

Answer 10

The sum is the answer to an addition problem. 2 + 2= 4, the sum is 4

Question 11

What is the product?

Answer 11

The product is the answer to a multiplication problem. 5 x 3 =15, the product is 15