一台织布机一小时织布21米,4台同样的织布机5小时共织布多少米?2Q/E;i*i3P-e
算式:提示3z*]3m3}+b(w4K8l2Q/E;i*i3P-e
答:4台同样的织布机5小时共织布2x5L,f2^)[(y米。2Q/E;i*i3P-e