Basic Math Examples

20 \cdot 24

$20 \cdot 24$

Step 1

Multiply using long multiplication.

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Step 1.1

Multiply

4

$4$ by

0

$0$ . Place the result in the next column in the result line. There is one result line for each digit in

24

$24$ .


	$2$ $2$	$0$ $0$
$\times$ $⨯$	$2$ $2$	$4$ $4$
		$0$ $0$

Step 1.2

Multiply

4

$4$ by

2

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

24

$24$ .


	$2$ $2$	$0$ $0$
$\times$ $⨯$	$2$ $2$	$4$ $4$
	$8$ $8$	$0$ $0$

Step 1.3

Multiply

2

$2$ by

0

$0$ . Place the result in the next column in the result line. There is one result line for each digit in

24

$24$ .


	$2$ $2$	$0$ $0$
$\times$ $⨯$	$2$ $2$	$4$ $4$
	$8$ $8$	$0$ $0$
	$0$ $0$

Step 1.4

Multiply

2

$2$ by

2

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

24

$24$ .


	$2$ $2$	$0$ $0$
$\times$ $⨯$	$2$ $2$	$4$ $4$
	$8$ $8$	$0$ $0$
$4$ $4$	$0$ $0$

Step 1.5

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

0 + 0

$0 + 0$ , then place the

0

$0$ in the result line.


	$2$ $2$	$0$ $0$
$\times$ $⨯$	$2$ $2$	$4$ $4$
	$8$ $8$	$0$ $0$
$4$ $4$	$0$ $0$
		$0$ $0$

Step 1.6

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

8 + 0

$8 + 0$ , then place the

8

$8$ in the result line.


	$2$ $2$	$0$ $0$
$\times$ $⨯$	$2$ $2$	$4$ $4$
	$8$ $8$	$0$ $0$
$4$ $4$	$0$ $0$
	$8$ $8$	$0$ $0$

Step 1.7

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

0 + 4

$0 + 4$ , then place the

4

$4$ in the result line.


	$2$ $2$	$0$ $0$
$\times$ $⨯$	$2$ $2$	$4$ $4$
	$8$ $8$	$0$ $0$
$4$ $4$	$0$ $0$
$4$ $4$	$8$ $8$	$0$ $0$


	$2$ $2$	$0$ $0$
$\times$ $⨯$	$2$ $2$	$4$ $4$
	$8$ $8$	$0$ $0$
$4$ $4$	$0$ $0$
$4$ $4$	$8$ $8$	$0$ $0$

Step 2

The result of

20 \cdot 24

$20 \cdot 24$ is

480

$480$ .

480

$480$