Pre-Algebra Examples

$(3.9 \cdot 10^{2}) (2.3 \cdot 10^{6})$

Step 1

Multiply $3.9$ by $2.3$ .

$8.97 (10^{2} \cdot 10^{6})$

Step 2

Multiply $10^{2}$ by $10^{6}$ by adding the exponents.

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Step 2.1

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$8.97 \cdot 10^{2 + 6}$

Step 2.2

Add $2$ and $6$ .

$8.97 \cdot 10^{8}$

Step 3

The result can be shown in multiple forms.

Scientific Notation:

$8.97 \cdot 10^{8}$

Expanded Form:

$897000000$