Basic Math Examples

$9872 - 2.31416$

Step 1

Subtract using long subtraction.

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Step 1.1

Set up the subtraction problem in long subtraction format.


	$9$	$8$	$7$	$2$	.	$0$	$0$
$-$				$2$	.	$3$	$1$	$4$	$1$	$6$
					.

Step 1.2

Borrow $10$ from the digit in the next column to the left. Add the borrowed $10$ to $0$ . Reduce the number that was borrowed from by $1$ .

									$- 1$	$10$
	$9$	$8$	$7$	$2$	.	$0$	$0$
$-$				$2$	.	$3$	$1$	$4$	$1$	$6$
					.

Step 1.3

Subtract $6$ from $10$ .

									$- 1$	$10$
	$9$	$8$	$7$	$2$	.	$0$	$0$
$-$				$2$	.	$3$	$1$	$4$	$1$	$6$
					.					$4$

Step 1.4

Borrow $10$ from the digit in the next column to the left. Add the borrowed $10$ to $- 1$ . Reduce the number that was borrowed from by $1$ .

								$- 1$	$9$	$10$
	$9$	$8$	$7$	$2$	.	$0$	$0$
$-$				$2$	.	$3$	$1$	$4$	$1$	$6$
					.					$4$

Step 1.5

Subtract $1$ from $9$ .

								$- 1$	$9$	$10$
	$9$	$8$	$7$	$2$	.	$0$	$0$
$-$				$2$	.	$3$	$1$	$4$	$1$	$6$
					.				$8$	$4$

Step 1.6

Borrow $10$ from the digit in the next column to the left. Add the borrowed $10$ to $- 1$ . Reduce the number that was borrowed from by $1$ .

							$- 1$	$9$	$9$	$10$
	$9$	$8$	$7$	$2$	.	$0$	$0$
$-$				$2$	.	$3$	$1$	$4$	$1$	$6$
					.				$8$	$4$

Step 1.7

Subtract $4$ from $9$ .

							$- 1$	$9$	$9$	$10$
	$9$	$8$	$7$	$2$	.	$0$	$0$
$-$				$2$	.	$3$	$1$	$4$	$1$	$6$
					.			$5$	$8$	$4$

Step 1.8

Borrow $10$ from the digit in the next column to the left. Add the borrowed $10$ to $- 1$ . Reduce the number that was borrowed from by $1$ .

						$- 1$	$9$	$9$	$9$	$10$
	$9$	$8$	$7$	$2$	.	$0$	$0$
$-$				$2$	.	$3$	$1$	$4$	$1$	$6$
					.			$5$	$8$	$4$

Step 1.9

Subtract $1$ from $9$ .

						$- 1$	$9$	$9$	$9$	$10$
	$9$	$8$	$7$	$2$	.	$0$	$0$
$-$				$2$	.	$3$	$1$	$4$	$1$	$6$
					.		$8$	$5$	$8$	$4$

Step 1.10

Borrow $10$ from the digit in the next column to the left. Add the borrowed $10$ to $- 1$ . Reduce the number that was borrowed from by $1$ .

				$1$		$9$	$9$	$9$	$9$	$10$
	$9$	$8$	$7$	$2$	.	$0$	$0$
$-$				$2$	.	$3$	$1$	$4$	$1$	$6$
					.		$8$	$5$	$8$	$4$

Step 1.11

Subtract $3$ from $9$ .

				$1$		$9$	$9$	$9$	$9$	$10$
	$9$	$8$	$7$	$2$	.	$0$	$0$
$-$				$2$	.	$3$	$1$	$4$	$1$	$6$
					.	$6$	$8$	$5$	$8$	$4$

Step 1.12

Borrow $10$ from the digit in the next column to the left. Add the borrowed $10$ to $1$ . Reduce the number that was borrowed from by $1$ .

			$6$	$11$		$9$	$9$	$9$	$9$	$10$
	$9$	$8$	$7$	$2$	.	$0$	$0$
$-$				$2$	.	$3$	$1$	$4$	$1$	$6$
					.	$6$	$8$	$5$	$8$	$4$

Step 1.13

Subtract $2$ from $11$ .

			$6$	$11$		$9$	$9$	$9$	$9$	$10$
	$9$	$8$	$7$	$2$	.	$0$	$0$
$-$				$2$	.	$3$	$1$	$4$	$1$	$6$
				$9$	.	$6$	$8$	$5$	$8$	$4$

Step 1.14

Subtract $0$ from $6$ .

			$6$	$11$		$9$	$9$	$9$	$9$	$10$
	$9$	$8$	$7$	$2$	.	$0$	$0$
$-$				$2$	.	$3$	$1$	$4$	$1$	$6$
			$6$	$9$	.	$6$	$8$	$5$	$8$	$4$

Step 1.15

Subtract $0$ from $8$ .

			$6$	$11$		$9$	$9$	$9$	$9$	$10$
	$9$	$8$	$7$	$2$	.	$0$	$0$
$-$				$2$	.	$3$	$1$	$4$	$1$	$6$
		$8$	$6$	$9$	.	$6$	$8$	$5$	$8$	$4$

Step 1.16

Subtract $0$ from $9$ .

			$6$	$11$		$9$	$9$	$9$	$9$	$10$
	$9$	$8$	$7$	$2$	.	$0$	$0$
$-$				$2$	.	$3$	$1$	$4$	$1$	$6$
	$9$	$8$	$6$	$9$	.	$6$	$8$	$5$	$8$	$4$

			$6$	$11$		$9$	$9$	$9$	$9$	$10$
	$9$	$8$	$7$	$2$	.	$0$	$0$
$-$				$2$	.	$3$	$1$	$4$	$1$	$6$
	$9$	$8$	$6$	$9$	.	$6$	$8$	$5$	$8$	$4$

Step 2

The result of $9872 - 2.31416$ is $9869.68584$ .

$9869.68584$