Z=Integers;
Rational numbers={a/b| a,b∈Z, b ≠ 0}.
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If you are adding or subtracting two numbers in scientific notation, you must rewrite one of the numbers to the same power of ten as the other, before performing the addition (or subtraction).
The point of using scientific notation is to compute very large or very small numbers.
111100002 equals 24010 using unsigned notation. It equals -1610 using signed notation.
scientific notation
It is using the scientific notation.