猪娃放学回家了,半路遇到了熊大伯,熊大伯笑嘻嘻地对猪娃说:“上学的孩子一定会算账,你帮我算笔账吧!”猪娃高兴地说:“熊大伯,你算找对人了,我算账可在行了,算什么?快说吧!我还要忙着回家玩呢!”熊大伯说:“是这么回事,我养了9只鸡,其中有2只公鸡,每只鸡每星期能下5枚蛋,这些鸡一星期能下多少枚蛋呀?” Piggy school to go home, and half encountered Xiong Taibo, Xiong Taibo grinning pig said: “children attending school will be credited, you help me forget it!” “Pig said happily:” Bear Big uncle, you are looking for the right person, and I can count in the line, what? Quick to say! I have to go home and play too busy! “” Bear uncle said: "is the case, I have a 9 There are two chickens, two of them chickens and five chickens per week. How many eggs can these chickens a week?