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看谁算得又对又快,12,18,20,19,17,19,12,10,北师大版小学数学一年级上册,有几瓶牛奶,左边的牛奶比右边多几瓶？,右边的牛奶比左边少几瓶？,9-5=4,一共有几瓶牛奶？,9,5,一共有几瓶牛奶？,14,9,+,5,=,14,1,4,10,9,+,5,=,14,5,4,10,9,+,5,=,1,4,10,14,9,+,5,=,4,5,10,14,李强的方法：,小雪的方法：,12,9,+,3,=,12,1,2,10,6,+,9,=,15,5,1,10,11,18,13,9,+,8,17,4,+,9,13,3、,4、,15,17,9,3,12,9,+,3,12,7,9,16,7,+,9,16,圈一圈 算一算,9+2=,9+6=,9+9=,4+9=,11,15,18,13,17,1,7,10,18,1,8,10,填一填（一）,15,4,5,10,16,3,6,10,填一填（二）,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。,9,4,13,9,4,13,11,12,13,14,15,16,17,18,看谁算得又对又快,14,12,16,17,15,16,13,11,看谁算得又对又快,
