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Move the decimal point to the left or right so that it is after the first non-zero digit. Count the number of places that the decimal point has been moved.

The mantissa for the standard for is the new decimal representation. The index, for the 10 is the number of places that the decimal point was moved: positive if the dp was moved to the left and negative if to the right.


So, for example,

34500 = 3.45*10^4

0.000345 = 3.45*10^-4


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10y ago

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Q: How do you make decimals into standard form?
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