red+black=( ) red+( )=purple ( )+)+( )=green red+white=( )
red+black=( ) red+( )=purple ( )+)+( )=green red+white=( )
red+( )=purple white+black=( ) red+( )=( )
red+black=( ) red+( )=purple ( )+yellow=orange (
Grey-white= Grey-black= Black+white= Red+green= Brown-green=
( )+red=pink、white+black=()、blue+()=purple、black+blue=()十万火急
red+()=purple red+yellow+blue=()
英语加法red+yellow= yellow+blue= red+blue= black+white=white+red
grey-white=? grey-black=? black+white=? red+green=? br
+red=pink white+biack=?blue+?=purple black+blue=?
red+green=?
green+red=?
1.black+white=( ) 3.red+yellow=( ) 2.green+( )=brown 4.grey-