How Many Are Hidden? More Packages of Presents
There are the same number of presents in both pictures.
How many presents are hidden behind the cloud? How do you know?
How can you finish the equation to make it true?
What do you notice about how the blue number changed? What about the red number?
- Now there are more than 36 presents.
How many might be hidden behind each cloud? How do you know?
- Finish the equation to make it true.
What do you notice about how the numbers changed?