Basic Math Examples

22 \cdot 28

$22 \cdot 28$

Step 1

Multiply using long multiplication.

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Step 1.1

Multiply

8

$8$ by

2

$2$ . Place the ones digit

(6)

$(6)$ in the result line and carry the tens digit

(1)

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

28

$28$ .

	$1$ $1$
	$2$ $2$	$2$ $2$
$\times$ $⨯$	$2$ $2$	$8$ $8$
		$6$ $6$

Step 1.2

Multiply

8

$8$ by

2

$2$ and add the carried

1

$1$ . Place the ones digit

(7)

$(7)$ in the result line and carry the tens digit

(1)

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

28

$28$ .


	$2$ $2$	$2$ $2$
$\times$ $⨯$	$2$ $2$	$8$ $8$
$1$ $1$	$7$ $7$	$6$ $6$

Step 1.3

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

28

$28$ .


	$2$ $2$	$2$ $2$
$\times$ $⨯$	$2$ $2$	$8$ $8$
$1$ $1$	$7$ $7$	$6$ $6$
	$4$ $4$

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

28

$28$ .


	$2$ $2$	$2$ $2$
$\times$ $⨯$	$2$ $2$	$8$ $8$
$1$ $1$	$7$ $7$	$6$ $6$
$4$ $4$	$4$ $4$

Step 1.5

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

6 + 0

$6 + 0$ , then place the

6

$6$ in the result line.


	$2$ $2$	$2$ $2$
$\times$ $⨯$	$2$ $2$	$8$ $8$
$1$ $1$	$7$ $7$	$6$ $6$
$4$ $4$	$4$ $4$
		$6$ $6$

Step 1.6

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

7 + 4

$7 + 4$ , then place the

1

$1$ in the result line and carry the

1

$1$ .


	$2$ $2$	$2$ $2$
$\times$ $⨯$	$2$ $2$	$8$ $8$
$1$ $1$	$7$ $7$	$6$ $6$
$4$ $4$	$4$ $4$
	$1$ $1$	$6$ $6$

Step 1.7

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

1 + 4 + 1

$1 + 4 + 1$ , then place the

$6$ in the result line.


	$2$	$2$
$⨯$	$2$	$8$
$1$	$7$	$6$
$4$	$4$
$6$	$1$	$6$


	$2$	$2$
$⨯$	$2$	$8$
$1$	$7$	$6$
$4$	$4$
$6$	$1$	$6$

Step 2

The result of

$22 \cdot 28$ is

$616$ .

$616$