Basic Math Examples

$231 \cdot 20$

Step 1

Multiply

$0$ by

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

$20$ .


	$2$	$3$	$1$
$⨯$		$2$	$0$
			$0$

Step 2

Multiply

$0$ by

$3$ . Place the result in the next column in the result line. There is one result line for each digit in

$20$ .


	$2$	$3$	$1$
$⨯$		$2$	$0$
		$0$	$0$

Step 3

Multiply

$0$ by

$2$ . Place the result in the next column in the result line. There is one result line for each digit in

$20$ .


	$2$	$3$	$1$
$⨯$		$2$	$0$
	$0$	$0$	$0$

Step 4

Multiply

$2$ by

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

$20$ .


	$2$	$3$	$1$
$⨯$		$2$	$0$
	$0$	$0$	$0$
		$2$

Step 5

Multiply

$2$ by

$3$ . Place the result in the next column in the result line. There is one result line for each digit in

$20$ .


	$2$	$3$	$1$
$⨯$		$2$	$0$
	$0$	$0$	$0$
	$6$	$2$

Step 6

Multiply

$2$ by

$2$ . Place the result in the next column in the result line. There is one result line for each digit in

$20$ .


	$2$	$3$	$1$
$⨯$		$2$	$0$
	$0$	$0$	$0$
$4$	$6$	$2$

Step 7

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

$0 + 0$ , then place the

$0$ in the result line.


	$2$	$3$	$1$
$⨯$		$2$	$0$
	$0$	$0$	$0$
$4$	$6$	$2$
			$0$

Step 8

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

$0 + 2$ , then place the

$2$ in the result line.


	$2$	$3$	$1$
$⨯$		$2$	$0$
	$0$	$0$	$0$
$4$	$6$	$2$
		$2$	$0$

Step 9

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

$0 + 6$ , then place the

$6$ in the result line.


	$2$	$3$	$1$
$⨯$		$2$	$0$
	$0$	$0$	$0$
$4$	$6$	$2$
	$6$	$2$	$0$

Step 10

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

$0 + 4$ , then place the

$4$ in the result line.


	$2$	$3$	$1$
$⨯$		$2$	$0$
	$0$	$0$	$0$
$4$	$6$	$2$
$4$	$6$	$2$	$0$

Step 11

The result of

$231 \cdot 20$ is

$4620$ .

$4620$

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