Math is a language, boy.
.
Let's translate the language into English.
.
You currently have $859. Ok...
.
But a bedroom costs $1,200. Uh oh!!
.
What do you do?!
.
You need to find how much more you need.
.
So?
.
You subtract $859 from $1,200.
.
What's the answer?
.
$341.
.
Hope I helped!!