Question

Mary did the following problem.57 – 6^2 + (10-2)57 - 6^2 + 1257 – 36 + 1257 – 489Which of these statements is true?*It is wrong because the subtraction should have been done before the addition. *It is wrong because 57-48 is 11. *It is wrong because 6^2 is 12. *It is correct.

Answer 1

(A)It is wrong because the subtraction should have been done before the addition.

Step-by-step explanation:

The problem with the solution is the next step after this:

`\begin{gathered} 57-36+12 \\ \end{gathered}`

The subtraction should have been evaluated first as follows:

`\begin{gathered} =21+12 \\ =33 \end{gathered}`

Therefore, It is wrong because the subtraction should have been done before the addition.