A girl scout troop must sell more than 800 boxes of cookies to earn a trip to camp. if troop #842 has sold 571 boxes, how many more must they sell to win the trip?

Answer :

olemakpadu
They have already sold 571 and need 800 to win.

The remaining more boxes is:  800 - 571 = 229

They need to sell 229 more boxes to win.