The document shows a series of addition problems where numbers are doubled, with 2 + 2 = 4 doubling to 4 + 4 = 8, and 3 + 3 = 6 doubling to 6 + 6 = 12, demonstrating doubling. It then asks how many cubes were taken away, suggesting the document is explaining doubling through examples and asking a question to check understanding.

1. 2 + 2 = 4
Doubles

2. 2 + 2 = 4
Doubles

3. 3 + 3 = 6
Doubles

4. 4 + 4 = 8
Doubles

5. 5 + 5 = 10
Doubles

6. Doubles
How many
cubes did I
take away?

7. Doubles
How many
cubes did I
take away?