Subtract 83 minus 66: Vertical Format Solution

Video Solution

Solution Steps

00:00 Solve

00:03 Each time we consider borrowing 2 digits, and then we place

00:06 3 is less than 6

00:09 So we subtract 1 from the tens and add this amount to the ones

00:15 That means instead of 3 we now have 13

00:18 We subtract the ones from the ones plus ten

00:22 We place in the ones

00:26 We subtract tens from tens, and place in tens

00:30 And this is the solution to the problem

Step-by-Step Solution

To solve this subtraction problem step-by-step, we perform the following:

First, align the numbers for vertical subtraction:

$\begin{array}{r} 83 \\ -66 \\ \hline \end{array}$

Step 1: Subtract the ones place:

The ones digit of $83$ (3) is smaller than the ones digit of $66$ (6). Therefore, we need to borrow.

Borrow $1$ from the tens place of $83$ , which becomes $7$ leaving the original ones place of 13.
Subtract the ones digits: $13 - 6 = 7$

Step 2: Subtract the tens place:

Now that we've borrowed, we are left with $7$ in the tens place of the top number:

Combine the results of the subtraction:

The final answer, after subtracting the two numbers, is $17$ .

Therefore, the solution to the problem is $17$ , which corresponds to choice 4.