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The symbol separating the dividend from the divisor in a long division that is drawn as a right parenthesis (or sometimes a straight vertical bar) with an attached vinculum extending to the right seems to have no established name of its own. It can therefore simply be termed the "long division symbol," or sometimes the division bracket.
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Is that long division box called a division line?
Yep, to do long division the box is called a division bracket.
What is the long division box called?
The long division box is called a "division bracket" or a "division bar." It is used to separate the dividend from the divisor in the long division process. The division bracket helps to organize the numbers and steps involved in dividing one number by another.
What is the long division bar called?
The long division symbol has no established name of its own. However, it consists of a closing bracket and a horizontal line on top of the numbers called a "vinculum" - from the Latin meaning "something which is tied up".
Which one is the divisor?
The one you are using to divide by; the bottom of the fraction (denominator); the one of the outside of the long division bracket.
Why is long division called long division?
It is called long division because you write down all the numbers for each step to solve the problem and for large numbers there is a lot of writing down. There is a technique called short division which is similar but is more mental, not requiring all the long division steps. But it is usually done only when you are dividing by a small number less than 10, so it is not that useful.
