Basic Math Examples

$51 \cdot 2$

Step 1

Multiply using long multiplication.

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Step 1.1

Multiply

$2$ by

$1$ . Place the result in the next column in the result line. There is one result line for each digit in

$2$ .


	$5$	$1$
$⨯$		$2$
		$2$

Step 1.2

Multiply

$2$ by

$5$ . Place the ones digit

$(0)$ in the result line and carry the tens digit

$(1)$ . There is one result line for each digit in

$2$ .


	$5$	$1$
$⨯$		$2$
$1$	$0$	$2$

Step 1.3

Add the numbers in each column. In this case, add

$2$ , then place the

$2$ in the result line.


	$5$	$1$
$⨯$		$2$
$1$	$0$	$2$
		$2$

Step 1.4

Add the numbers in each column. In this case, add

$0$ , then place the

$0$ in the result line.


	$5$	$1$
$⨯$		$2$
$1$	$0$	$2$
	$0$	$2$

Step 1.5

Add the numbers in each column. In this case, add

$1$ , then place the

$1$ in the result line.


	$5$	$1$
$⨯$		$2$
$1$	$0$	$2$
$1$	$0$	$2$


	$5$	$1$
$⨯$		$2$
$1$	$0$	$2$
$1$	$0$	$2$

Step 2

The result of

$51 \cdot 2$ is

$102$ .

$102$

$51 \cdot 2$

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