有些图形是由多个小正方体方块组成的,要数出这种图形中的正方体方块个数,需要掌握一定的方法。这个方法就是:一层一层地数,再把每层数到的数加在一起。例题:数一数下面每个图形里有几个小正方体方块。【分析与解】由于最上面一层的方块个数清楚可见,所以,要从最上面一层开始,一层一层地数,并分别记下各层方块数。数下一层时,既要数能看见的方块,又要数被上一层压住的部分(看不见)的方块,被上一层压住的部分的方块数和上一层 Some graphics are composed of many small square blocks, to figure out the number of square blocks in this graphic, you need to know a certain method. This method is: layer by layer, then the number of each layer to add together. Example: Number of Poles There are several small square blocks in each graph below. Analysis and Solutions】 【As the number of the top layer of the box clearly visible, so from the top of a layer, layer by layer, and were recorded in each layer of the number of squares. The next layer, it is necessary to see a few blocks, but also by the number of layers of a layer of suppressed (invisible) of the box, the layer is suppressed by the previous block and the number of layers