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Message Subject Math: 6÷2(1+2) = ?
Poster Handle Anonymous Coward
Post Content
Casio says 1, en Texas Instruments says 9.

It is nine.

That's just 3 because 1 +2 1 +2 brackets.
So we have:

6 ÷ 2 x 3

Multiplication and division is on a par in terms of priority calculations, because a division does not actually exist: a division by two is a multiplication by 1/2. A multiplication therefore has no priority for a division, as this is the case at a summation. 2 + 3 X 5 = 17.

Given multiplication and division rank equally, they are just left to right.
So first 6/2 gives 3 times 3 is 9 and that
In order to get to 1 you should depart from that rule and that can only by EXTRA parentheses to insert:

6 ÷ (2 x 3)

as one would give.
 Quoting: Anonymous Coward 13045367


You didn't eliminate parentheses properly, Read the above post with 5 or so references to the proper way of doing math.
 
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