well first you can only have one number on the left side of the decimal. so if the number is 2,345,000,000,000 in scientific notation it would be 2.345x1012 . i know this because all the non zero numbers (2345) are there. to get the right power you can count how many spaces to move rthe decimal.
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scientific notation
scientific notation.
Scientific notation (also called standard form or exponential notation) is a way of writing numbers that accommodates values too large or small to be conveniently written in standard decimal notation.
While numbers under 1,000 usually aren't written in scientific notation 10 would be written as 1.0 x 101
When you add numbers in scientific notation, it is best to convert them to their original decimal form, or at least change them so that they have the same exponent. Then when you are finished adding, simply put the solution is proper scientific notation.