Question

Jackie follow the steps to elevate the expression 15 - (37 + 8) divide 3 37 + 8 = 45 45-15= 30 30 divided by 3 = 10 Mark looks at Jackie's work and says she made a mistake he says she would have divided by 3 before she subtracted. Which student is correct?

Answer 1

So, we conclude that Mark is right.

Explanation:

If we have the following expression: 15 - (37 + 8) : 3.

We will first divide the value we get in parentheses and then subtract it.

Because sharing is an older mathematical operation than subtraction. Therefore, we get:

`15-(37+8):3=15-45:3=15-15=0`

So, we conclude that Mark is right.