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Plz help me with all of this question here and explain how was the incorrect answer obtained

Plz help me with all of this question here and explain how was the incorrect answer-example-1
User ByteSlayer
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1 Answer

3 votes

Answer:

1.) 9

2.) 20

Explanation:

1.) 39 is incorrect because they didn't follow the PEMDAS rule.

They subtracted 2 from 15 which is 13, and then they multiplied 13 by 3.

The correct way is to multiply 2 times 3 which is 6, and then subtract 6 from 15 which is 9.

2.) 12 is incorrect because they didn't use PEMDAS.

They added 8 to 16 which is 24, and then divided 24 by 2.

The correct way is to divide 8 by 2 which is 4, and then add for to 16 which 20.

User Robert Panzer
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