Multiplying by 3

Have you heard of the song about the Three Blind Mice?

Or the story about the Three Little Pigs?

What do these two have in common? 😎

Yes, they're all about 3!

In this lesson, you're going to learn about multiplying numbers by 3.

So far, what have you learned about multiplication?

**Multiplication **is adding the same number repeatedly.

Let's say you have to multiply this:

2 x 3=?

You can draw **equal groups **to figure out the answer:

Or you can do **repeated addition:**

2 + 2 + 2=6

Or you can do **skip counting **in your head:

2, 4, 6

In earlier lessons, you also learned rules for multiplying by 0, multiplying by 1, and multiplying by 2.

Do you remember them?

**Multiplying by 0** always equals 0!

**Multiplying by 1** doesn't change the number.

**Multiplying by 2** doubles the number.

Great job! 🤗

What happens when we multiply by 3?

When we **multiply by 3,** we add the same number 3 times.

Let's try an example:

3 x 4=?

We can add 4, three times.

4 + 4 + 4=12

The answer is 12!

**Tip:** 👍 In your head, think about it like **skip counting **three times!

4, 8, 12

Adding numbers repeatedly can take a long time for larger numbers, so this secret trick can help you. 😃

When **multiplying by 3,** you can **double the number then add 1 more** group.

3 x 2=?

First, double 2. That's 2 x 2.

2+2=4

Then, add 1 more group.

4+2=6

Our answer is 6!

😌 If this is not helpful for you, you can use the multiplication table to practice your multiplication by 3's.

The **multiplication table **is a list of numbers multiplied by itself or by other numbers.

This is the multiplication table for 3.

The multiplication table is a useful tool as you're still learning how to multiply by 3s.

Let's look at the numbers one at a time:

3 x 1=3

3 x 2=6

3 x 3=9

3 x 4=12

3 x 5=15

3 x 6=18

3 x 7=21

3 x 8=24

3 x 9=27

3 x 10=30

3 x 11=33

3 x 12=36

Great work!

Now, why don't you try to multiply by 3 without looking at this? 😎

Try the practice now! 💪

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