9加几,4,3,6,5,7,8,10+9=,10+6=,16,19,10+3=,13,9+1+4= 9+1+7=9+1+5= 9+1+2=,14,17,15,12,9+（ ）=10,1,顺口溜：看大数，分小数，凑成十，算得数 。,92,97,98,99,9 + 6 =,9 + 3 =,9 + 7 =,9 + 5 =,9 + 8 =,9 + 2 =,9 + 9 =,9 + 4 =,11,12,13,14,15,16,17,18,11,12,13,14,15,16,17,18,+ 2 =,9,+ 3 =,9,+ 4 =,9,+ 5 =,9,+ 6 =,9,+ 7 =,9,+ 8 =,9,+ 9 =,9,9 + 5 = 14,9 + 7 = 16,9 + 8 = 17,9 + 4 = 13,9 + 3 = 12,9 + 9 = 18,拓展练习,( )+9=12,9+( )=17,9+( )=18,9+( )=13,( )+9=16,( )+9=15,6,8,4,3,9,7,同学们，谈谈你的收获吧！,9加几，不用怕，借一个，凑成十，计算起来对又快。,再见！,
