Basic Math Examples

$7.2 \cdot 10^{3} + 2.2 \cdot 10^{2}$

Step 1

Move the decimal point in $2.2$ to the left by $1$ place and increase the power of $10^{2}$ by $1$ .

$7.2 \cdot 10^{3} + 0.22 \cdot 10^{3}$

Step 2

Factor $10^{3}$ out of $7.2 \cdot 10^{3} + 0.22 \cdot 10^{3}$ .

$(7.2 + 0.22) \cdot 10^{3}$

Step 3

Add $7.2$ and $0.22$ .

$7.42 \cdot 10^{3}$

Step 4

The result can be shown in multiple forms.

Scientific Notation:

$7.42 \cdot 10^{3}$

Expanded Form:

$7420$