Basic Math Examples

28 \cdot 5

$28 \cdot 5$

Step 1

Multiply using long multiplication.

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Step 1.1

Multiply

5

$5$ by

8

$8$ . Place the ones digit

(0)

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

(4)

$(4)$ . There is one result line for each digit in

5

$5$ .

Step 1.2

Multiply

5

$5$ by

2

$2$ and add the carried

4

$4$ . Place the ones digit

(4)

$(4)$ in the result line and carry the tens digit

(1)

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

5

$5$ .

Step 1.3

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

0

$0$ , then place the

0

$0$ in the result line.

Step 1.4

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

4

$4$ , then place the

4

$4$ in the result line.

Step 1.5

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

1

$1$ , then place the

1

$1$ in the result line.

Step 2

The result of

28 \cdot 5

$28 \cdot 5$ is

140

$140$ .

140

$140$