Using Properties of Math with Expressions

Using Properties of Math

with Expressions

Multiple Choice

Identify the variable.

 $2x+3$  

• 2

• x

• 3

• +

Multiple Choice

Identify the constant.

 $7+j$  

• 7

• +

• j

Multiple Choice

Identify the coefficient.

 $m+8$  

• 1

• m

• 8

Learning Target

• I can use properties of math to simplify expressions.

Commutative Propeprty

• Rearranges the order of an expression to combine like terms.

•  $7x+8+x+11+5y$  

• Rearrange to put like terms together.

•  $7x+x+8+11+5y$  

•  $8x+19+5y$  

Subtraction and Commutative

•  $4m-7+3m-6m+1$  

• When rearranging, keep the sign in front of the term.

•  $4m+3m-6m-7+1$  

Distributive Property

• Individually multiplying grouped terms by a specific number.

•  $3\left(2x+5\right)$  

•  $3\left(2x\right)+3\left(5\right)$  

•  $6x+15$  

Multiple Choice

Use commutative property to simplify the expression.

 $8x+9-4x+1$  

• 4x + 10

• 12x - 8

• 4x - 8

Multiple Choice

Use the distributive property to simplify the expression.

 $2\left(3x+4\right)$  

• 3x + 4 + 2

• 6x + 8

• 9x

• 3x + 6