Confused by long division? By the end of this article you’ll be able to divide 100 by 8 using long division and be able to apply the same technique to any other long division problem you have! Let’s take a look.
If we multiply the divisor by the result in the previous step (8 x 1 = 8), we can now add that answer below the dividend:
Next, we will subtract the result from the previous step from the third digit of the dividend (10 – 8 = 2) and write that answer below:
Move the third digit of the dividend (0) down like so:
The divisor (8) goes into the bottom number (20), 2 time(s), so we can put 2 on top:
If we multiply the divisor by the result in the previous step (8 x 2 = 16), we can now add that answer below the dividend:
Next, we will subtract the result from the previous step from the fourth digit of the dividend (20 – 16 = 4) and write that answer below:
So, what is the answer to 100 divided by 8?
If you made it this far into the tutorial, well done! There are no more digits to move down from the dividend, which means we have completed the long division problem.
Your answer is the top number, and any remainder will be the bottom number. So, for 100 divided by 8, the final solution is:
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Extra calculations for you
Now you’ve learned the long division approach to 100 divided by 8, here are a few other ways you might do the calculation:
- Using a calculator, if you typed in 100 divided by 8, you’d get 12.5.
- You could also express 100/8 as a mixed fraction: 12 4/8
- If you look at the mixed fraction 12 4/8, you’ll see that the numerator is the same as the remainder (4), the denominator is our original divisor (8), and the whole number is our final answer (12).
Next Long Division Problem
Eager for more long division but can’t be bothered to type two numbers into the calculator above? No worries. Here’s the next problem for you to solve:
Random Long Division Problems
If you made it this far down the page then you must REALLY love long division problems, huh? Below are a bunch of randomly generated calculations for your long dividing pleasure: