Number Line Multiplication

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The third-grade classmates are sharing their books to learn more about one another. Daniel is going to read Madelyn’s book. Can you help him multiply to count the pictures he sees in Madelyn’s book?

We will use skip counting on a number line to multiply. That’s because skip counting is a faster way to count up equal groups!

First, we will find out how many items are in each group and how many groups there are. Then we will choose the number line and skip count up by making jumps to the right.

We can use the number line to write and solve the multiplication sentences. Let’s help Daniel learn more about Madelyn!

The first page of Madelyn’s book shows that she likes to skateboard! We need to find out how many skateboards are on this page.

They are in 7 groups of 2. That means we need to use a number line that skip counts by 2s, like this one!

To skip count 7 groups of 2, we need to make 7 jumps on this number line. 1, 2, 3, 4, 5, 6, 7.

We need to write a multiplication sentence. We skip counted by 2 seven times. What multiplication sentence can we write?

7 times 2! The number of jumps is the first factor. The number we skip count is the second factor. The number the last jump lands on is the answer.

It’s 14. There are 14 skateboards on the first page of Madelyn’s book!

The second page of Madelyn’s book shows that she helps rake leaves at home. How many leaves do you see?

They are in 8 groups of 3. What kind of number line should we use to help us count the leaves?

A number line that skip counts by 3s! How many jumps do we need to make?

8! 1, 2, 3, 4, 5, 6, 7, 8.

We need an addition sentence and a multiplication sentence that match the number line.

What multiplication sentence can we write?

8 times 3! What is the answer?

The number the last jump lands on! It’s 24. There are 24 leaves on the second page of Madelyn’s book!

The third page of Madelyn’s book shows that she likes learning about outer space! How many stars do you see?

They are in 6 groups of 5. What kind of number line should we use to help us count the stars?

A number line that skip counts by 5s! How many jumps do we need to make?

6! 1, 2, 3, 4, 5, 6.

We need a multiplication sentence that matches the number line. What multiplication sentence can we write?

6 times 5! What is the answer?

It’s 30! The last jump lands on 30. There are 30 stars on the third page of Madelyn’s book!

You did a great job helping Daniel count the pictures by skip counting on a number line! Daniel learned a lot about his classmate and new friend, Madelyn!