妈妈有83元钱，买书用去30元，还剩多少元钱?1^)Y8O3|0G(C,Z+|*]:@,b
算式：提示*\+N4u1[3D8K4O,p0]6~/^1^)Y8O3|0G(C,Z+|*]:@,b
答：还剩4n(X'f5K-D4~元钱。1^)Y8O3|0G(C,Z+|*]:@,b