Long Division With Remainders Made Easy
Understanding Division
Splitting Things Up
Division is one of the four basic operations in arithmetic, along with addition, subtraction, and multiplication. At its heart, division is all about splitting a number into equal groups. Imagine you have 12 cookies and you want to share them equally among 4 friends. How many cookies does each friend get? Division gives you the answer.
In this case, you're dividing 12 by 4. Each friend gets 3 cookies. The equation for this looks like:
This is a simple division problem. Let's break down the parts of this equation.
dividend
noun
The number that is being divided. In our example, it's 12.
The dividend is the total amount you start with.
divisor
noun
The number you are dividing by. In our example, it's 4.
The divisor tells you how many equal groups you need to make.
quotient
noun
The result of the division. In our example, it's 3.
The quotient is the answer, telling you how many are in each group.
The Link to Multiplication
Division and multiplication are closely related. In fact, they are inverse operations, meaning they undo each other. Think about our cookie problem. We found that . You can check this answer using multiplication. If you have 4 friends and each gets 3 cookies, the total number of cookies is . It brings you right back to the starting number!
Because of this relationship, you can use multiplication to solve division problems. If you need to solve , you can ask yourself, "What number times 4 equals 12?"
The numbers 3, 4, and 12 form what's called a "fact family." You can create two multiplication facts and two division facts using these three numbers.
Here's the full fact family for 3, 4, and 12:
Understanding this connection makes division much easier to grasp. If you know your multiplication facts, you already know your division facts.
Time for a quick check on these new concepts.
If you have 20 apples and you want to share them equally among 5 friends, how many apples does each friend get?
In the equation , what is the number 15 called?
Now that you understand the basics of what division is and how it relates to multiplication, you have the foundation for tackling more complex problems.