1千克苹果的价钱是5.5元，妈妈买了4千克的苹果花了多少元？(N*j6c*J9A/D3l)D-b9r1J'K
算式：提示'c3X*e)w6k4e+D's*p)c8l2v;f:B8g.Z(N*j6c*J9A/D3l)D-b9r1J'K
答：买4千克苹果花)b+U)o-|(z(P1w'o2z)n,v7Z:l.S1\元。(N*j6c*J9A/D3l)D-b9r1J'K