+0

# your calculator is incorrectly programmed!

-2
132
3

why does this calculator NOT use PEMDAS? 6 / 2(1+2) = 1, NOT 9.

Guest Apr 26, 2017
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#1
+4786
+4

6 / 2(1+2)    is     $$\frac62(1+2)$$

and

$$\frac62(1+2)=3(1+2)=3(3)=9$$

Does that help?

*edit*

If you want $$\frac{6}{2(1+2)}$$

You have to type it like this: 6/(2(1+2)) ...which DOES = 1

hectictar  Apr 26, 2017
edited by hectictar  Apr 26, 2017
#2
+77175
+3

6 / 2(1+2)

By the order of operations......the division  of 6 / 2    occurs first.....= 3

So

3 ( 1 + 2)   =

3 ( 3)   = 9

But

6 / [  2 ( 1 + 2) ]   =

6 /  [  2 (3) ]  =

6 / 6  =

1

This points up the importance of parentheses.............and the lack of their use often changes the nature of the problem.....!!!!!!

CPhill  Apr 26, 2017
#3
+90638
+1

Put more simply:

The calculator is correct

Melody  Apr 27, 2017

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