8月22日晴星期六上午,我和爸爸一起搭积木。我们先把积木分类摆好:有长方体、正方体、圆柱体、三棱体和拱桥形的积木,巧的是每种正好都是5块哦!爸爸问:“一共有多少块积木呢?”我数了数:“5、10、……、25,有25块积木呢!”我们先搭了一列小火车,你瞧!5块拱桥形的做火车轨道,5块正方体的做火车厢,1块圆柱体的做烟囱,最后用1块三棱体的做火车尾巴。这样搭小火车就用去了12块积木!“还剩下多少块呢?”爸爸问我。“一共的 August 22 clear Saturday morning, I and my father take the building blocks. Let’s put the classification of building blocks first: a cube, cube, cylinder, prism and arch bridge-shaped building blocks, coincidentally, each is exactly 5 Oh! Dad asked: ”a total of how many blocks it? I count a few: “5,10, ..., 25, there are 25 building blocks it! ” We first take a train, you see! 5 arch bridge to do the train tracks, 5 cube fire Carriages, a cylinder made of chimneys, and finally with a triangular prism to do the tail of the train. So take a small train to use 12 blocks! “How many blocks left?” “Dad asked me. ”Altogether