人教版二年级数学练习五课件.ppt

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,练习五,1,、把每行的三个数加起来。,19,55,40,25,34,30,24,45,30,48,36,5,17,18,64,1 9,+5 5,1,4,7,+2 5,9,9,9,9,1 9,+4 0,9,5,+3 0,9,8,8,9,2 5,+3 4,9,5,+3 0,9,8,8,9,1,、把每行的三个数加起来。,19,55,40,25,34,30,24,45,30,48,36,5,17,18,64,2 4,+4 5,9,6,+3 0,9,9,9,9,4 8,+3 6,1,4,8,+5,9,8,8,9,1 7,+1 8,1,5,3,+6 4,9,9,9,9,99,89,89,1 7,+1 8,1,5,3,+6 4,9,9,9,9,我学会了！,算出红星小学参加三项体育活动的总人数。,98,28+11+59=,1,3 9,5 9,+,9 8,98,2 8,1 1,+,3.,39,56,18,+8,-20,47,27,64,44,26,6,5.,50-25=25(,元,),25,+36,-47,+58,-23,+19,61,14,72,49,68,8.,24,51,15,21,30,39,45,9,36,90,90,90,90,90,90,90,90,