Basic Math Examples

$0.00045 - 2.5 \cdot 10^{- 5}$

Step 1

Convert $0.00045$ to scientific notation.

$4.5 \cdot 10^{- 4} - 2.5 \cdot 10^{- 5}$

Step 2

Move the decimal point in $- 2.5$ to the left by $1$ place and increase the power of $10^{- 5}$ by $1$ .

$4.5 \cdot 10^{- 4} - 0.25 \cdot 10^{- 4}$

Step 3

Factor $10^{- 4}$ out of $4.5 \cdot 10^{- 4} - 0.25 \cdot 10^{- 4}$ .

$(4.5 - 0.25) \cdot 10^{- 4}$

Step 4

Subtract $0.25$ from $4.5$ .

$4.25 \cdot 10^{- 4}$

Step 5

The result can be shown in multiple forms.

Scientific Notation:

$4.25 \cdot 10^{- 4}$

Expanded Form:

$0.000425$