what is 2+2=?

Answer 1

All in the source:

"This involves some fundamental, deep mathematics. The really hard thing is to show that 1+1=2. Once you have that, it's relatively easy to show that 2+2=4. What it means for 1+1 to equal 2 is that they're the SAME THING. That means
that if we do the same thing to both of them, we should get the same result. Let's take both sides of the equation and
add them to themselves. We can think about that as just adding the two
equations, like this:

1+1 = 2
+ 1+1 = 2
---------
1+1+1+1 = 2+2

Now think about the left side of the equation. What is "4?" Well, it's
just a name for the "fourth" (i.e., this many: * * * *) item in the
following list:

1
1+1
1+1+1
1+1+1+1
1+1+1+1+1
...

So "4" just means "start counting by ones until you reach the 'fourth'
item."


So we have this:

1+1 = 2
+ 1+1 = 2
---------
1+1+1+1 = 2+2
4 = 2+2

Answer 2

2+2 = 4

Answer 3

2+2 is a mathematical equation, often regarding as a very simple one at that. The solution to the problem is 4. This particular equation involves the operation of addition, invovling adding two numbers, and finding their sum, which just so happens to be four.

Answer 4

You are just asking a question for the sake of asking a question arent you? If you can type on a computer keyboard i should hope you would know what 2+2 is.

btw it equals 4.

Answer 5

I'm confused as to why you're even asking this question. 2+2=4. 2+2=? could also be considered and equation, a math problem, or simple addition.

Answer 6

Are you joking me???

2 apples + 2 apples = 4 apples

try yourself

Answer 7

Uhm...4

Answer 8

depends on what base you are using.

If it is the common base 10, then 4.

If it is any other base go here...http://en.wikipedia.org/wiki/Radix