Math Garde 3
posted by Hong .
How can adding doubles help you to multiply by 2 ? give an example in your explanation

3 + 3 = 2 * 3
4 + 4 = 2 * 4 
How adding help doubles help you to multiple by 2

8+8=16
2x8=16 
by we can do 19 times 2 is a big number
so its a example 
Dab