Subtract 7 from 625: Vertical Format Arithmetic Problem

Video Solution

Solution Steps

00:00 Solve

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

00:06 5 is less than 7

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

00:14 Meaning now instead of 5 we will have 15

00:19 Subtract the ones from the ones plus ten

00:24 Place in the ones

00:27 Place 0 in the missing digits

00:31 Subtract tens from tens, and place in tens

00:36 Subtract hundreds from hundreds, and place in hundreds

00:39 And this is the solution to the question

Step-by-Step Solution

To solve the problem of subtracting 7 from 625, we will use vertical subtraction. The alignment and borrowing process is as follows:

Align the numbers vertically. Here, we have $625$ minus $7$ , where $7$ is in the units place.
Start with the rightmost digit. Since we have $5$ in the units place of 625 and need to subtract $7$ , borrowing is necessary because 5 is smaller than 7.
Borrow from the tens place: - The tens digit in 625 is $2$ . We decrease $2$ by $1$ , making it $1$ . - This means we now have $15$ (10 + 5) in the units place for our subtraction.
Subtract: $15 - 7 = 8$ . Write $8$ in the units place of the result.
Move to the tens place: substract $1 - 0 = 1$ as there is no number to subtract other than $0$ .
Finally, move to the hundreds place: $6 - 0 = 6$ . Thus, the hundreds digit remains $6$ .
This leaves us with the final subtraction result: $618$ .

Therefore, the solution to the problem is $618$ .