热烈欢迎各位领导来指导检查工作！

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,*,热烈欢迎各位领导,来指导检查工作！,可爱的小青蛙,口算,1,5,2,2,4,5,3,7,2,6,3,8,6,1,5,5,4,9,3,4,7,5,3,9,5,4,20,21,12,24,6,25,36,12,35,27,小蝌蚪找妈妈,12,18,6,23,6+6,92,62,6+6+6,9+9,3+3,34,试一试,36=,35=,39=,23=,42=,82=,32=,63=,92=,43=,33=,27,15,8,73=,52=,83=,27=,6,16,18,18,21,10,6,24,18,14,12,26=,12,9,根据口诀填空,二 得六,五二十,三 二十一,五八,2,14,7,21,432,530,三,四,七,四十,7,3,8,6,35=,15,15+10=,25,算一算,21=,3+3=,24=,32=,5+2=,11=,1+1=,1-1=,41=,54=,23=,35=,22=,2+3=,44=,2,6,8,6,7,1,2,0,4,20,6,15,4,5,16,4元,买5个 共用多少元？,4,5,20,（元）,每层大约高3米,这座大楼大约高多少米?,3,5,15,（米）,再见,