《加减混合运算》教学.ppt

苏教版小学数学二年级上册,加减混合运算,复习：连加、连减（笔算）,262538,701826,2,6,2,5,5,1,3,8,8,9,89,7,0,1,8,5,2,2,6,2,6,26,复习：连加、连减（口算）,12820,50306,42830,78188,78406,52128,40,14,20,52,32,48,送给幼儿园33只，还剩多少只？,384233,384233 （ ）,3,8,4,2,8,0,1,8,0,3,3,4,7,.,47,只,送给幼儿园33只，还剩多少只？,384233 （ ）,3,8,4,2,8,0,47,只,3,3,4,7,送给幼儿园33只，还剩多少只？,试一试,603840,6,0,3,8,2,2,2,2,4,0,6,2,62,试一试,6,0,3,8,2,2,4,0,6,2,603840,62,1、,502649,453824,742736,445237,73,59,59,83,2、,67,61,51,45,45,39,3、计算下面各题，能口算的就口算。,351440,47168,833029,402615,61,55,81,24,4、,5、,