Explain how you could mentally find 8 times 45 by using the distributive property

8 times 40 plus 8 times 5 and then you get your answer.

First, break up 45 into 40 and 5 then multipy 8(40) which equals 320 and multipy 8(5) which equals 40. Thrn add 320+40 to get the product 360. 
Hope this helped 

8x45
8(40)+8(5)
320+40
360