北师版小学数学一年级上册“有几瓶牛奶”PPT课件.ppt

有几瓶牛奶,9 + 1 + 5 =,9 + 1 + 3 =,5 + 5 + 9 =,9 + 7 + 1 =,13,15,19,17,9,5,小狗点点送来9瓶牛奶，小兔飞飞送来5瓶牛奶。一共有几瓶牛奶?,9,10,11,12,13,14,第一种,9,+,5,=,14,1,4,10,第二种,9,+,5,=,14,5,4,10,第三种,1,4,第四种,9,5,14,看大数，分小数，凑成十，加剩数,看小数，分大数，凑成十，加剩数,9,+,2,=,11,1,1,10,9,+,6,=,15,1,5,10,9,+,9,=,18,1,8,10,4,+,9,=,13,3,1,10,9,+,3,=,12,1,2,10,试一试,请翻开书P70，完成“试一试”。,7,+,9,=,16,6,1,10,17,1,7,10,18,1,8,10,填一填,15,4,5,10,16,3,6,10,填一填,一共有( )朵。,9,+,7,=,16,1,6,10,16,? 枝,9,2,11,？ 个,9,6,15,原来有( )盆花，,又搬来( )盆，,一共有( )盆。,9,4,13,9,4,13,看看谁算得快,11,12,13,14,15,16,17,18,