Division is splitting a number into equal groups.
Let's divide 8 by 2 together.
8 ÷ 2 = ?
We can draw 8 squares to help us figure it out.
Now, let’s divide them into 2 groups.
How many squares are in each group?
Yes, 4.
8 ÷ 2 = 4
Tip: It's easy to do division when you know your multiplication facts.
That's because:
Division is the opposite of multiplication.
We can use multiplication to check our answer.
4 × 2 = 8
Awesome! 😀
Now, let's review how to divide by 1 through 5.
Dividing a number by 1 doesn't change the number, just like when we multiply a number by 1.
These are the division facts for 1:
Let's see if you can answer this quickly. 🚴
10 ÷ 1 = ?
Yes! 10!
How about:
7 ÷ 1 = ?
You got it! 7.
Let's try a bigger number.
817,316 ÷ 1 = ?
Great job! It's 817,316!
Dividing by 1 is a piece of cake. 🍰 The number doesn't change.
Tip: this is also called the identity property of division.
When dividing by 2, you split a number into two equal groups.
The number in each group is the answer.
Remember that division is the opposite of multiplication.
Let's say you see a division question like this:
16 ÷ 2 = ?
Just ask yourself, what number times 2 equals 16?
? × 2 = 16
Do you know the answer?
8 × 2 = 16
So you know the related division equation too:
16 ÷ 2 = 8
It's also helpful to just memorize your division facts:
Do you know what 22 ÷ 2 is?
Yes, 11.
How about 24 ÷ 2?
Yes, it's 12.
Great job. Pause and review those if you need a moment.
Take a look at the division facts for 3.
If you can multiply by 3, then you can already divide by 3 too.
Look at this division equation:
21 ÷ 3 = ?
To solve it, just re-write it as a multiplication equation.
? × 3 = 21
Do you know what number times 3 equals 21?
Yes, 7 x 3 is 21.
So we know that...
21 ÷ 3 = 7
Now, do you know what 33 ÷ 3 is?
It's 11.
How about 36 ÷ 3?
It's 12. Because 12 × 3 = 36. ✅
Look at these triangles:
Let's divide them into 4 equal groups.
The division equation for this is
12 ÷ 4 = 3
The answer is the same as the number of triangles in each group.
There are 3 triangles in each group.
Memorize these division facts for 4:
Mini quiz: What's 44 ÷ 4?
It's 11.
How about 48 ÷ 4?
It's 12.
Great work so far.
Dividing by 5 is easy if you've already memorized your multiplication facts for 5.
20 ÷ 5 = ?
To divide 20 by 5, just ask yourself, what number times 5 equals 20?
? × 5 = 20
Do you know the answer?
4 × 5 = 20
So you know that:
20 ÷ 5 = 4
To help you master dividing by 5, memorize these division facts:
Do you know 55 ÷ 5?
It's 11.
How about 60 ÷ 5?
It's 12. Those are important to memorize too.
Excellent work! 👏
Now, try the practice. You'll become a division master.