Basic Math Examples

$0.07 \cdot 1000$

Step 1

Multiply using long multiplication.

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Step 1.1

Multiply

$0$ by

$7$ . Place the result in the next column in the result line. There is one result line for each digit in

$1000$ .


		$0$	. $0$	$7$
$⨯$	$1$	$0$	$0$	$0$
				$0$

Step 1.2

Multiply

$0$ by

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

$1000$ .


		$0$	. $0$	$7$
$⨯$	$1$	$0$	$0$	$0$
			$0$	$0$

Step 1.3

Multiply

$0$ by

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

$1000$ .


		$0$	. $0$	$7$
$⨯$	$1$	$0$	$0$	$0$
		$0$	$0$	$0$

Step 1.4

Multiply

$0$ by

$7$ . Place the result in the next column in the result line. There is one result line for each digit in

$1000$ .


		$0$	. $0$	$7$
$⨯$	$1$	$0$	$0$	$0$
		$0$	$0$	$0$
			$0$

Step 1.5

Multiply

$0$ by

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

$1000$ .


		$0$	. $0$	$7$
$⨯$	$1$	$0$	$0$	$0$
		$0$	$0$	$0$
		$0$	$0$

Step 1.6

Multiply

$0$ by

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

$1000$ .


		$0$	. $0$	$7$
$⨯$	$1$	$0$	$0$	$0$
		$0$	$0$	$0$
	$0$	$0$	$0$

Step 1.7

Multiply

$0$ by

$7$ . Place the result in the next column in the result line. There is one result line for each digit in

$1000$ .


		$0$	. $0$	$7$
$⨯$	$1$	$0$	$0$	$0$
		$0$	$0$	$0$
	$0$	$0$	$0$
		$0$

Step 1.8

Multiply

$0$ by

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

$1000$ .


		$0$	. $0$	$7$
$⨯$	$1$	$0$	$0$	$0$
		$0$	$0$	$0$
	$0$	$0$	$0$
	$0$	$0$

Step 1.9

Multiply

$0$ by

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

$1000$ .


		$0$	. $0$	$7$
$⨯$	$1$	$0$	$0$	$0$
		$0$	$0$	$0$
	$0$	$0$	$0$
$0$	$0$	$0$

Step 1.10

Multiply

$1$ by

$7$ . Place the result in the next column in the result line. There is one result line for each digit in

$1000$ .


		$0$	. $0$	$7$
$⨯$	$1$	$0$	$0$	$0$
		$0$	$0$	$0$
	$0$	$0$	$0$
$0$	$0$	$0$
	$7$

Step 1.11

Multiply

$1$ by

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

$1000$ .


		$0$	. $0$	$7$
$⨯$	$1$	$0$	$0$	$0$
		$0$	$0$	$0$
	$0$	$0$	$0$
$0$	$0$	$0$
$0$	$7$

Step 1.12

Multiply

$1$ by

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

$1000$ .


			$0$	. $0$	$7$
	$⨯$	$1$	$0$	$0$	$0$
			$0$	$0$	$0$
		$0$	$0$	$0$
	$0$	$0$	$0$
$0$	$0$	$7$

Step 1.13

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

$0 + 0 + 0 + 0$ , then place the

$0$ in the result line.


			$0$	. $0$	$7$
	$⨯$	$1$	$0$	$0$	$0$
			$0$	$0$	$0$
		$0$	$0$	$0$
	$0$	$0$	$0$
$0$	$0$	$7$
					$0$

Step 1.14

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

$0 + 0 + 0 + 0$ , then place the

$0$ in the result line.


			$0$	. $0$	$7$
	$⨯$	$1$	$0$	$0$	$0$
			$0$	$0$	$0$
		$0$	$0$	$0$
	$0$	$0$	$0$
$0$	$0$	$7$
				$0$	$0$

Step 1.15

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

$0 + 0 + 0 + 0$ , then place the

$0$ in the result line.


			$0$	. $0$	$7$
	$⨯$	$1$	$0$	$0$	$0$
			$0$	$0$	$0$
		$0$	$0$	$0$
	$0$	$0$	$0$
$0$	$0$	$7$
			$0$	$0$	$0$

Step 1.16

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

$0 + 0 + 0 + 7$ , then place the

$7$ in the result line.


			$0$	. $0$	$7$
	$⨯$	$1$	$0$	$0$	$0$
			$0$	$0$	$0$
		$0$	$0$	$0$
	$0$	$0$	$0$
$0$	$0$	$7$
		$7$	$0$	$0$	$0$


			$0$	. $0$	$7$
	$⨯$	$1$	$0$	$0$	$0$
			$0$	$0$	$0$
		$0$	$0$	$0$
	$0$	$0$	$0$
$0$	$0$	$7$
		$7$	$0$	$0$	$0$

Step 2

To find the number of decimal places needed in the answer, add the number of decimal places in the multiplier and multiplicand. In this case, there is a total of

$2$ , so the answer must have

$2$ decimal places as well.

$70$