Solve 2*10^-3+5*10^-4=

$$2 \times 10 ^ { - 3 } + 5 \times 10 ^ { - 4 } =$$

Evaluate

$$\frac{1}{400}=0.0025$$

Solution Steps

Calculate 10 to the power of -3 and get \frac{1}{1000}.

$$2\times \frac{1}{1000}+5\times 10^{-4}$$

Multiply 2 and \frac{1}{1000} to get \frac{1}{500}.

$$\frac{1}{500}+5\times 10^{-4}$$

Calculate 10 to the power of -4 and get \frac{1}{10000}.

$$\frac{1}{500}+5\times \frac{1}{10000}$$

Multiply 5 and \frac{1}{10000} to get \frac{1}{2000}.

$$\frac{1}{500}+\frac{1}{2000}$$

Add \frac{1}{500} and \frac{1}{2000} to get \frac{1}{400}.

$$\frac{1}{400}$$

Factor

$$\frac{1}{2 ^ {4} \cdot 5 ^ {2}} = 0.0025$$