北师大版一年级数学上册,跳伞表演,你是怎么想的？,你是怎样算的？,11-7=4,3,9,8,2,4,6,7,12,10,8,7,6,5,11,3,4,5,9,8,7,6,6,7,8,9,10,11,12,10,9,8,4,5,6,7,12,11,10,9,8,7,6,11,10,8,9,5,6,7,8,12,11,10,9,7,6,比较大小,你是怎样算的？,11-7=,蝴蝶比苍蝇多几只,12-6=,12-5=,12-4=,12-3=,考考你，你会发现什么规律,7,8,9,6,10,9,8,5,6,7,9,8,7,6,5,4,谢谢您的观看,
