In most junior school work it will look like the letter x.
Computers, though, use the asterisk (star) symbol, *.
In college or university mathematics you are more likely to use the full stop: as in a.b
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The mantissa is located before the multiplication symbol and the power of 10 in scientific notation.
To perform multiplication using scientific notation you simply add the exponents after performing the multiplication of the values. Example: 32500 * 4521000 = ? 3.25 e4 * 4.521 e6 = 14.69325 e10 or 1.469325 e11
It is 3.1*10^10 in scientific notation
0.5 in Scientific Notation = 5 x 10-1
Scientific notation looks like a*10bwhere 1 ≤ |a| < 10 is a decimal number and bis an integer.