Quote:
Originally Posted by Mindz
Why would anyone want to add 2 + 2 in the first place if there's no specified units?
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because your teacher said to....
In School when we are taught to add this statement is taught to us. To get a visual of what this means our teachers used illustrations, like 2 apples plus 2 apples = 4 apples. There has never in all my learnings ever the word (units) been included after a number in a math problem, because it is understood and unnecessary. So in a practical world yes the numbers designate units of a real object, but in math you just use the numbers because they do not need to reperesent anything to illustrate the equation.