Subtract 1789 - 793: Vertical Format Solution Guide

Video Solution

Solution Steps

00:00 Solve

00:03 Each time consider a shortage of 2 digits, and then we'll place

00:06 Subtract ones from ones, and place in ones

00:09 8 is less than 9

00:16 Therefore we subtract 1 from hundreds, and add this amount to tens

00:20 So now instead of 8 we will have 18

00:25 Subtract tens from tens plus the ten

00:28 Place in tens

00:32 6 is less than 7

00:38 Therefore we subtract 1 from thousands, and add this amount to hundreds

00:44 So now instead of 6 we will have 16

00:51 Subtract hundreds from hundreds plus the hundred

00:54 Place in hundreds

00:57 Place 0 in the missing digits

01:00 Subtract thousands from thousands, and place in thousands

01:03 And this is the solution to the problem

Step-by-Step Solution

To solve this problem, we'll carry out vertical subtraction by following these steps:

Step 1: Write the minuend and subtrahend vertically aligned, ensuring each digit stands in its respective column.
Step 2: Start subtracting from the rightmost column (units) and move leftwards, managing any requisite borrowing.

Let's execute the subtraction:

Step 1: Begin with the units column.

$9 - 3 = 6$

Step 2: Move to the tens column.

$8 - 9$

Since 8 is smaller than 9, we need to borrow 1 from the hundreds column, changing 8 to 18:

$18 - 9 = 9$

Step 3: Move to the hundreds column. Since we've borrowed 1, adjust accordingly.

$6 - 7$

Here, we again need to borrow from the thousands column making it 16:

$16 - 7 = 9$

Step 4: In the thousands column, after borrowing, we have:

$1 - 0 = 0$

Thus, compiling the subtractions, we are left with the final solution:

$996$

Therefore, the solution to the subtraction problem $1789 - 793$ is $996$ , which corresponds to choice 2.