Solve Vertical Subtraction: 89 minus 9 Step-by-Step

Question

$\begin{aligned} &89 \\ -& \\ &~~9 \\ &\underline{\phantom{776}} & \\ \end{aligned}$

00:00 Solve

00:03 Each time calculate subtraction of 2 digits, and then place

00:06 Let's start by subtracting ones from ones, and place in ones

00:09 Place 0 in the missing digits

00:13 Subtract tens from tens, and place in tens

00:16 And this is the solution to the question

To find the result of subtracting 9 from 89, we will look at it digit by digit:

The subtraction does not require any borrowing since both digits are smaller than or equal to the digits we are subtracting from.

Thus, the result of the subtraction $89 - 9$ is $80$ .

Considering the given multiple-choice options, the correct choice is option 4: $80$ .