Solve Vertical Subtraction: 867 minus 578

Video Solution

Solution Steps

00:00 Solve

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

00:06 7 is less than 8

00:11 Therefore we subtract 1 from the tens and add this amount to the ones

00:18 So now instead of 7 we will have 17

00:24 We subtract the ones from the ones plus ten

00:29 We place in the ones

00:35 5 is less than 7

00:41 Therefore we subtract 1 from the hundreds and add this amount to the tens

00:46 So now instead of 5 we will have 15

00:51 We subtract the tens from the tens plus ten

00:56 We place in the tens

01:00 We subtract hundreds from hundreds, and place in hundreds

01:03 And this is the solution to the problem

Step-by-Step Solution

To solve this problem, we’ll perform vertical subtraction:

Step 1: Subtract the units digit: $7$ (in 867) - $8$ (in 578) requires borrowing. Borrow 1 ten from the tens place of 867, making the units place $17$ and the tens place $5$ .
Step 2: Now, $17 - 8 = 9$ . The digit in the units place of the answer is 9.
Step 3: Subtract the tens digit: With the new tens digit, $5 - 7$ also requires borrowing. Borrow 1 from the hundreds place, making the tens place $15$ and the hundreds place $7$ .
Step 4: Now, $15 - 7 = 8$ . The digit in the tens place of the answer is 8.
Step 5: Subtract the hundreds digit: $7 - 5 = 2$ . The digit in the hundreds place of the answer is 2.

Therefore, the final answer after subtraction is $289$ .