Basic Math Examples

$4.02 \cdot 10^{6} + 7.74 \cdot 10^{7}$

Step 1

Move the decimal point in $4.02$ to the left by $1$ place and increase the power of $10^{6}$ by $1$ .

$0.402 \cdot 10^{7} + 7.74 \cdot 10^{7}$

Step 2

Factor $10^{7}$ out of $0.402 \cdot 10^{7} + 7.74 \cdot 10^{7}$ .

$(0.402 + 7.74) \cdot 10^{7}$

Step 3

Add $0.402$ and $7.74$ .

$8.142 \cdot 10^{7}$

Step 4

The result can be shown in multiple forms.

Scientific Notation:

$8.142 \cdot 10^{7}$

Expanded Form:

$81420000$