Very easy will give brainlest you and friend you how can the associative property be used to mentally fine 48 + 82?

You can use teh associative property to split 48 and 82 each into 2 peices

(40+8)(80+2) then you can move the parenthesis around. 40+(8+80)+2

40+(88+2)

40+90=130

if you need , reply with more info. u.

make sure you have version 2.50

try looking in the very back of the book : )

step-by-step explanation:

you can download it here