Counting in Groups of Ten: Author's Purpose

Why did the author most likely write this passage?

• A.To sell a new video game
• B.To teach readers about skip counting by 10s
• C.To tell a spooky ghost story

Authors use examples to explain their ideas. Which sentence from the passage gives an example?

• A.For example, if you have 30 apples, you can skip count by…
• B.Skip counting by 10s means counting in groups of ten.
• C.This helps us count faster!