Answer:
6.81 × 10^-4
Explanation:
A number is said to be in standard form when it is written in the form of A × 10^n.
6.81 × 10^-4
6.81× 0.0001
= 0.000681
The correct scientific notation of the number 0.000681 is 6.81 × 10⁻⁴.
The scientific notation provides the way of expressing a complex number in the easiest way.
A number is said to be in scientific form when it is written in the form of A × 10^n.
0.000681 = 6.81× 0.0001
0.000681 = 6.81 × 10⁻⁴
Thus, correct scientific notation of the number 0.000681 is 6.81 × 10⁻⁴.
Learn more about scientific notation.
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