In this activity, we will learn about multiplying by 4.
To multiply by four, we can use repeated addition.
Here is a cow. One cow has 4 legs.
Let's think about what happens if we have 5 cows, each with 4 legs and we want to find the total number of legs!
We could count the legs one by one but this would take a while!
Instead, let's use repeated addition to show the total.
5 groups of 4 looks like this as repeated addition
4 + 4 + 4 + 4 + 4 = 20
There are 20 legs in total!
Now let's try an example of multiplying by 4, using repeated addition.
Here are 4 cows. They each have 4 legs. How many legs in total?
In total, there are 4 + 4 + 4 + 4 = 16 legs.
What is 4 times 4?
4 × 4 = 16
Now that you understand repeated addition, let's try some more questions.