The operation, 7.21 x [tex]10^-3[/tex] + 2.11 x [tex]10^-3[/tex] yields 9.32 x [tex]10^-3[/tex] in scientific notation.
Scientific notation is used applied when dealing with very large or very small figures.
Scientific notation involves a number, multiplied by ten raised to an index.
This is an addition operation, we can carry it out as follows;
(7.21 + 2.11) x [tex]10^-3[/tex] = 9.32 x [tex]10^-3[/tex]
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