Question

Tyler's says the expression 8×4+6÷2 has a value of 19 because the order of operations says you must solve from left to right.what mistake did tyler make

Answer 1

Tyler's mistake was that even though he walked from left to right as required he did not follow the order of operations totally.

The order of operation is PEMDAS( Parenthesis, Exponents, Multiplication, Division, and Subtraction). One must move strictly from the left of the operations to the right as written, that is from Parenthesis down to Subtraction in that order. Tyler went from left to right as required but instead forgot to Multiply first, then Divide and finally Add, as the order goes, He instead Multiplied, Added then Divided.

`\begin{gathered} \text{What Tyler did} \\ =8*4+6\text{ divided by 2} \\ =32\text{ + 6 divided by 2} \\ =(38)/(2) \\ =19 \end{gathered}`
`\begin{gathered} \text{What he ought to do} \\ =8*4+6\text{ divided by 2} \\ =32+3 \\ =35 \end{gathered}`