Which choice shows 30 + 10 + 20 rewritten correctly using the commutative property and then simplified correctly? A.30 + 20 + 10 = 50 + 10 = 60.

B.30+10+10+10=40+10+10=50+10=60
C.30+20+10=50+30=80
D.30+10+10+10=40+10=50

A. 30+20+10=50+10=60

Step-by-step explanation:

The commutative property is the property of which you can rearrange the numbers around but the answer stays the same. From the original equation, you moved 20 and 10 around and added 30+20=50 then, you add 10 plus that 50 since you haven't done anything to the 10 yet. So, 50+10=60.

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step-by-step explanation:

this is not possible to solve with the info given.   you need at least an one angle somewhere.

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