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

(18 + 23) + 7

A.
41 + 7 (use order of operations)

B.
30 + 25 (use the commutative property)

C.
25 + 30 (use the distributive property)

D.
18 + 30 (use the associative property)

Question

Which two options could be the next step in simplifying this expression?
 
(18 + 23) + 7
 
 A.
41 + 7 (use order of operations)
 
 B.
30 + 25 (use the commutative property)
 
 C.
25 + 30 (use the distributive property)
 
 D.
18 + 30 (use the associative property)

inkyvoyd · Answer

hint, order of operations only applies when there's more than one type of operation, commutative means a operator b = b operator a, distributive needs 2 operators, and associative needs at least 3 numbers with the same operation

jonathanvaldes98 · Answer

i think A.

calculusxy · Answer

Do you know what all of the math vocabulary means in the parentheses?

anonymous · Answer

The answer is A and D.
(18 + 23) + 7 = 41 + 7
18 + (23 + 7) = 18 + 30

jonathanvaldes98 · Answer

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ybarrap · Answer

Do parenthesis 1st then the rest, A would be best answer.

calculusxy · Answer

But aren't they asking for two options meaning two answer choices?

anonymous · Answer

Thanks!

debbieg · Answer

@s01025881, the problem is it says the NEXT step. As you point out, D could be arrived at, but it takes the associative property + 1 additional step:

18 + (23 + 7) Associative
 = 18 + 30     Order of operations

The 18 + 30 is not the result of the associative property, but the step after that.

anonymous · Answer

so what is the answer?