Which two options could be the next step in simplifying this expression?

15 + (5 + 21)

A.
15 + 26 (use order of operations)

B.
20 + 21 (use the associative property)

C.
20 + 36 (use the distributive property)

D.
36 + 20 (use the commutative property)

Question

Which two options could be the next step in simplifying this expression?

 

15 + (5 + 21)
	
	
 
A.
	15 + 26 (use order of operations)
	
 
B.
	20 + 21 (use the associative property)
	
 
C.
	20 + 36 (use the distributive property)
	
 
D.
	36 + 20 (use the commutative property)

ipwnbunnies · Answer

Use order of operation for this problem. Follow PEMDAS: Parentheses, Exponents, Multiplication, Division, Addition, Subtraction
Since (5 + 21) are in parentheses, you would want to do that first.