Solve 5*10^-8-2*10^-6

$$5 \cdot 10 ^ { - 8 } - 2 \cdot 10 ^ { - 6 }$$

Evaluate

$$-\frac{39}{20000000}=-0.00000195$$

Solution Steps

Calculate 10 to the power of -8 and get \frac{1}{100000000}.

$$5\times \frac{1}{100000000}-2\times 10^{-6}$$

Multiply 5 and \frac{1}{100000000} to get \frac{1}{20000000}.

$$\frac{1}{20000000}-2\times 10^{-6}$$

Calculate 10 to the power of -6 and get \frac{1}{1000000}.

$$\frac{1}{20000000}-2\times \frac{1}{1000000}$$

Multiply 2 and \frac{1}{1000000} to get \frac{1}{500000}.

$$\frac{1}{20000000}-\frac{1}{500000}$$

Subtract \frac{1}{500000} from \frac{1}{20000000} to get -\frac{39}{20000000}.

$$-\frac{39}{20000000}$$

Factor

$$-\frac{39}{20000000} = -1.95 \times 10^{-6}$$