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Doing math lickety-split: Division

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The last of the Big Four operations is division. Division literally means splitting things up. For example, suppose you’re a parent on a picnic with your three children. You’ve brought along 12 pretzel sticks as snacks, and want to split them fairly so that each child gets the same number (don’t want to cause a fight, right?).

Each child gets four pretzel sticks. This problem tells you that


As with multiplication, division also has more than one sign: the division sign (÷) and the fraction slash (/) or fraction bar (—). So, some other ways to write the same information are


Whichever way you write it, the idea is the same: When you divide 12 pretzel sticks equally among three people, each person gets 4 of them.

When you divide one number by another, the first number is called the dividend, the second is called the divisor, and the result is the quotient. For example, in the division from the earlier example, the dividend is 12, the divisor is 3, and the quotient is 4.

Basic Math & Pre-Algebra All-in-One For Dummies (+ Chapter Quizzes Online)

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