+118687
2.3 x 10-2 = 23-2 = 21 Just like our anonymous guest told you 
CPhill and I both think that you probably mean 2.3 x 10-2
this is in scientific notation - to change it to usual notation you wil need to move the point 2 places but the minus sign means that it will be a little answer - less than 1 so move the point in the correct direction to make the number little.
2.3 = 0002.300000 I can add as many zeros as I want so long as the point says in the same place between the 2 and the 3.
so now when I jump the point it will jump over the 2 and over one zero and the answer will be 0.023 Just like CPhill told you.
You probably should work through this unit then you will understand properly.
http://www.mathsisfun.com/numbers/scientific-notation.html
Just highlight the address- right click and choose goto.
BY THE WAY YOU SHOULD HAVE WRITTEN IT 2.3*10^-2
tHE * MEANS MULTIPLY AND THE ^ (HAT) MEANS POWER OF.
+129899 whats the basic number of 2.3x 10-2
We have 2.3 x 1 /100
Move the decimal two places to the left on both "top" and "bottom," and we have
.023/ 1 = .023
+118687
2.3 x 10-2 = 23-2 = 21 Just like our anonymous guest told you
CPhill and I both think that you probably mean 2.3 x 10-2
this is in scientific notation - to change it to usual notation you wil need to move the point 2 places but the minus sign means that it will be a little answer - less than 1 so move the point in the correct direction to make the number little.
2.3 = 0002.300000 I can add as many zeros as I want so long as the point says in the same place between the 2 and the 3.
so now when I jump the point it will jump over the 2 and over one zero and the answer will be 0.023 Just like CPhill told you.
You probably should work through this unit then you will understand properly.
http://www.mathsisfun.com/numbers/scientific-notation.html
Just highlight the address- right click and choose goto.
BY THE WAY YOU SHOULD HAVE WRITTEN IT 2.3*10^-2
tHE * MEANS MULTIPLY AND THE ^ (HAT) MEANS POWER OF.
