妈妈买了25块巧克力,爸爸买了34块,一共卖了多少块?(r*S(X:J;Z(o1X6Z:J,l7O0J,b
算式:提示0@1t)U5Y4h+t,t'^,{-z2i6q3T(r*S(X:J;Z(o1X6Z:J,l7O0J,b
答;一共买了*j3G5g6b(u;e'S,A8P)w)`6b*W)x9Q,i块。(r*S(X:J;Z(o1X6Z:J,l7O0J,b