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,*,上课铃声叮铃响,小朋友们进教室,文具课本放整齐,静候老师把课上,1,、,2,、,3,,静下来,4,、,5,、,6,,坐端正,小眼睛,看老师,小嘴巴,不说话,小耳朵,认真听,课前准备歌,上课好纪律,上课铃声叮铃响小眼睛,看老师课前准备歌上课好纪律,6,+,9,3,5,2,2,4,+,+,+,-,-,-,-,7,9,9,8,10,1,5,6,9,7,1,2,10,9,8,3,1,第一关:,开火车,4,8,4,6+935224+-799810156971210,开火车,算一算,3+4=5+5=7+3=7 2=,5+4=6+3=4+4=3+7=,8 6=6+4=8 5=10 5=,5+5=10 6=8+2=7+2=,5+3=10 3=10 1=2+7=,7,10,10,5,9,9,8,10,10,10,10,2,8,4,7,3,5,9,9,9,开火车,算一算3+4=5+5=,开火车,算一算,9,5,10,3,10,5,10,2,10,1,10,6,4,7,4,8,9,5,开火车,算一算95103105102101106474895,求未知加数,求未知加数,苏教版-求加法里的未知数课件,苏教版-求加法里的未知数课件,你是怎样想的呢?,8+,(),=10,再放几个是,10,个?,8,10,10 8=2,2,2,未知数,例,你是怎样想的呢?8+()=10再放几个是10,再放,几个,就是,10,个?,8+,(),=10,2,再放几个就是 10个?8+()=102,求未知数,1,、看图填数,2,、用加法,3,、用减法,4,、用分与合,你都学会了吗?,求未知数1、看图填数2、用加法3、用减法4、用分与合你都学会,苏教版-求加法里的未知数课件,4+,(),=6,2,4+()=62,苏教版-求加法里的未知数课件,5+,(),=8,3,5+()=83,苏教版-求加法里的未知数课件,4+,(),=7,3,4+()=73,1,、,5+,(),=8,(),+6=10,7+,(),=8,3+,(),=9,3,6,1,4,1、5+()=8()+6=107+()=8,9+,(),=10,3+,(),=10,5+,(),=9,2,、看算式,画画填填。,1,7,4,9+()=103+()=105+()=92,3,、,3、,2+,(),=10,(),+9=10,(),+3=7 4+,(),=9,8,1,4,5,2+()=10 ()+9=10()+3=,5,、,9,7,5,3,1,5、97531,2+()=10,()+4=10,()+3=8,()+2=6,()+1=7,4+()=9,1+()=3,5,5,4,2,6,8,6,2+()=10()+4=10()+3=8(,6,、在里填“,”,或“,”或“”9756 3+7104+5,想一想,在唐僧师徒取经的路上,猪八戒去找吃的,他一共找来,10,根香蕉准备带回去分给师徒们吃,可是,看着香蕉,八戒直流口水,他忍不住一口气吃了好几根,吃完一看,手里还剩下,4,根香蕉了,八戒想,我刚才吃了几根呢?同学们你能告诉他吃了几根吗?,想一想在唐僧师徒取经的路上,猪八戒去找吃的,他一共找来10根,2+()=10,6+()=9,()+5=9,6+()=6,3+(),5,()+4,7,2+()=3+4,3,开火车,2+()=106+()=9()+5=96+(,2+()=10,6+()=9,()+5=9,6+()=6,3+(),5,()+4,7,2+()=3+4,4,开火车,2+()=106+()=9()+5=96+(,2+()=10,6+()=9,()+5=9,6+()=6,3+(),5,()+4,7,2+()=3+4,8,开火车,2+()=106+()=9()+5=96+(,2+()=10,6+()=9,()+5=9,6+()=6,3+(),5,()+4,7,2+()=3+4,0,开火车,2+()=106+()=9()+5=96+(,2+()=10,6+()=9,()+5=9,6+()=6,2+()=3+4,()+4,7,2+()=3+4,开火车,2+()=7,5,5,(),+3=5+4,5+4,9,6,2+()=106+()=9()+5=96+(,2+()=10,6+()=9,()+5=9,6+()=6,2+()=3+4,()+4,7,3+(),5,2,1,0,开火车,2+()=106+()=9()+5=96+(,2+()=10,6+()=9,()+5=9,6+()=6,3+(),5,()+4,7,3+(),5,.,.,.,6,5,4,3,开火车,2+()=106+()=9()+5=96+(,2+,=3+4,5,3+6 =4+,5,2+8=7+,=4+,=,+5=,+,3,9,1,5,6,第四关,:,5+4 =4 +,+1 =,+9,5,9,1,2+=3+453+6 =4+,再见,再见,