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Well, adding x10 is scientific notation. Example:456-4.56x102. this is because there are two numbers before the decimal. another example:14945-1.4945x104. if you do not get it, I'm sorry. This is the best i can explain
scientific calculators have scientific calculations such as scientific notation, but mechanical ones dont.
What is the difference between 392 and 247?
the difference is also doubled
they express the numbers using scientific notation