10+10=? Why?

Question

Scale Notation

Answer 1

10 in itself is not actually 10. 10 is the symbol used to represent the real number. Our counting system is known as the decimal system or as the "base 10" system." It varies from other counting systems such as Hexadecimal (Base 16) and Binary (Base 2). In any counting system the number displayed is actually, in relation to Base 10:

c x b^0 + d x b^1 + e x b^2 + f x b^3 (etc) when b is the place of the digit and c, d, e, f, etc. are the number in each respective place. (in base ten, our counting system, the right-most digit is the 0 place, the next digit to the left is the 1 place)

For the example that you gave, 10 + 10, the real equation is:

(0 x 10^0 + 1 x 10^1) + (0 x 10^0 + 1 x 10^1)

If you were to do the equation in binary (Base 2), it would turn out the same way. In binary, these are the numbers:

0 = 0
1 = 1
10 =2
11 = 3
100 = 4
101 = 5
110 = 6
111 = 7
1000= 8
1001 = 9
1010 = 10

So the equation would be 1010 + 1010. Remember, this is pronounced: one-zero-one-zero, not ten-ten or one thousand-ten.

1010 + 1010 = ....

(0 x 2^0 + 1 x 2 ^1 + 0 x 2^2 + 1 x 2^3) + (0 x 2^0 + 1 x 2 ^1 + 0 x 2^2 + 1 x 2^3)

Doing all of this work out you would still get 20 which is why, in a long explanation, 10 + 10 = 20.

Answer 2

10+10=20

Answer 3

20

Answer 4

10 +10 does not mean a question mark but 20

Answer 5

the 10+10 is something any first grader should be able to answer.

The "Why?" is a question asked of doctoral candidate mathematics students. It's one of the harder questions to answer with provable facts.

And no, I'm not a doctoral candidate mathematics student, so I'll just stick with 10 + 10 = 20 :-)

Answer 6

10+10=20
it's like that as u r u.

Answer 7

20?

Answer 8

? 20

Answer 9

10+10=20. y? just because.

10+10 =100 y? just because. (tip: binary)

Answer 10

bcause u have 10 (1111111111) and 10 more (1111111111). put them together and u get 20 (11111111111111111111). enjoy tryin 2 figure this out.