Basic Math Examples

81 - 64

$81 - 64$

Step 1

Subtract using long subtraction.

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Step 1.1

Set up the subtraction problem in long subtraction format.

Step 1.2

Borrow

10

$10$ from the digit in the next column to the left. Add the borrowed

10

$10$ to

1

$1$ . Reduce the number that was borrowed from by

1

$1$ .

Step 1.3

Subtract

$4$ from

$11$ .

Step 1.4

Subtract

$6$ from

$7$ .

Step 2

The result of

$81 - 64$ is

$17$ .

$17$