Q&A for How to Divide by a Two‐Digit Number

To convert a mixed number to an improper fraction, multiply the denominator by the whole number, and add the original numerator. That gives you the new numerator. The denominator remains unchanged, and the whole number no longer exists.

Whatever is left over in the last step is shown as a "remainder" attached to the whole-number quotient.

Probably not. If you've survived this long without resorting to math, there's no reason you couldn't continue to do so. Someone considerably younger than you, however, would be well advised to learn the fundamentals of math, because they can make life easier in many ways.

If you are trying to do it mentally, do 251 x 10 which is to put an zero at the end, to get 2510, and times it by 2 to get 5020, which can be done easily, then times by 3 again to get 15060. All mentally. You times it by 2 then 3 because they are factors of 6 and give the same result. It always is much easier to times it by 2 then 3 since if you know basic multiplication tables, you should be able to do it mentally.

I'd say between second and fourth grade, depending on class placement. My younger brother is learning that kind of thing right now, and he's in third grade.

You would still bring down the next digit from above, and then you would divide the divisor into a three-digit number rather than a two-digit number.

No, you can usually "survive" just fine without math. Math is critically important, of course, in certain lines of work, and it can make certain personal tasks easier, too. Schools teach math so that their students will have the option of pursuing various highly paid careers in engineering, technology, science, industry and academics.

Short division is usually performed when the divisor is a one-digit number, but if you're good at mental arithmetic, there's no reason you couldn't use short division with two-digit divisors, too.

Yes, the process is the same in both. Double-digit just involves a little more work.

56 goes into 98 one time. 98 - 56 = 42. Therefore, 98 ÷ 56 = 1 with a remainder of 42.