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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,*,8,、,7,、,6,加几,8+2+3,8+2+4,7+3+5,7+3+6,10+8,6+4+5,10+5,6+4+3,7+3+2,8+2+4,10+6,例1,例3,例2,复习题,练习题,1,、组成：,7,1,8,4,7,2,8,2,6,1,6,4,5,6,5,2,、口算,9+4=,9+8=,9+6=,9+3=,2+9=,5+9=,13,17,15,12,11,14,口答：,8+2+4=,14,7+3+2=,12,6+4+7=,17,复习,9,2=,想：,9,加（ ）得,10,。,1,9,2=,想：,9,加（ ）得,10,。,1,1,1,10,1,11,11,10,加（ ）得（ ）。,复习,8,、,7,、,6,加,几,8,5=,怎样想能很快说出得数？,8,、,7,、,6,加,几,8,5=,想,：,8,加（ ）得,10,。,2,8,5=,想,：,8,加（ ）得,10,。,2,2,3,10,3,13,13,10,加（ ）得（ ）。,8,、,7,、,6,加,几,5,主,8,、,7,、,6,加,几,8,5=,想,：,5,加（ ）得,10,。,5,8,5=,想,：,5,加（ ）得,10,。,5,3,5,10,3,13,13,10,加（ ）得（ ）。,8,、,7,、,6,加,几,84=,12,8、7、6加几,76=,13,65=,84=,2,2,10,12,8、7、6加几,76=,3,3,10,13,65=,4,1,10,11,84=,2,6,10,12,8、7、6加几,76=,3,4,10,13,65=,1,5,10,11,小朋友，拍拍手，大家齐唱凑十歌，九凑一，八凑二，七凑三来六凑四，两五相凑就满十。,8,9=,8,、,7,、,6,加,几,怎样想能很快说出得数？,8,9=,想：,8,加（ ）得,10,。,2,8,、,7,、,6,加,几,8,9=,想：,8,加（ ）得,10,。,2,8,、,7,、,6,加,几,10,加（ ）得（,),。,8,9=,想：,8,加（ ）得,10,。,2,2,7,10,7,17,17,8,、,7,、,6,加,几,8,、,7,、,6,加,几,8,9=,想：,9,加（ ）得,10,。,1,8,9=,想：,9,加（ ）得,10,。,1,8,、,7,、,6,加,几,7,1,10,17,10,加（ ）得（,),。,7,17,我们去闯关！,找规律、,第一关：,1,、 。,8+,2,4,8,5,6,3,9,7,8+,2,=10,8+,4,=12,8+,8,=16,8+,5,=13,8+,6,=14,8+,3,=11,8+,9,=17,8+,7,=15,先说得数,再写算式。,7+,5,=12,7+,4,=11,7+,7,=14,7+,9,=16,7+,6,=13,7+,8,=15,7+,5,4,7,9,6,8,先说得数,再写算式。,6+,7,=13,6+,5,=11,6+,9,=15,6+,6,=12,6+,8,=14,6+,7,8,6,5,9,8 +,2,4,8,6,=,=,=,=,7 +,3,5,9,7,=,=,=,=,10,12,16,14,10,12,16,14,1,、,7,+,4=,8,+,7=,6,+,5=,7,+,7=,7,+,6=,8,+,3=,11,15,11,14,13,11,第二关、看谁算的有对又快,7,+,8=,6,+,9=,7,+,9=,6,+,8=,6,+,7=,15,15,16,14,13,5,、,8+7=,6+5=,7+6=,7+8=,8+9=,7+4=,8+6=,7+7=,15,11,13,15,15,11,14,14,7+9=,16,7,、,8+4=,8+9=,9+7=,9+6=,8+3=,8+6=,8+7=,7+5=,12,17,16,15,11,14,15,12,8+8=,16,8,5,13,7,6,13,第三关、,圈一圈,算一算。,+,+,6,、,12,13,14,15,8+5,7+8,9+5,9+3,8+4,9+6,7+7,9+4,6+6,8+6,=,（,个,）,9,+,6,=,（,个,）,15,第四关、看图解决问题,=,（,只,）,9,+,3,=,（,只,）,12,=,（,只,）,9,+,3,=,（,只,）,12,又来了,5,人。,原来有,8,人，,=,（,人,）,8,+,5,=,（,人,）,13,2,、,7,4,11,4,、,7,+,5,12,8,、,8,+,7,15,
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