子页,子页,子页,子页,子页题目,内容:,子页,子页,子页,子页,子页题目,内容:,子页,子页,子页,子页,子页题目,内容:,子页,子页,子页,子页,子页题目,内容:,内容:,子页题目,子页,子页,子页,子页,主页,子页,子页题目,子页,子页,子页,主页,子页,T,H,A,N,K,Y,O,U,*,北师大版 四年级上册 第三单元 乘法,第一课时,第二课时,11421,1,2,3,4,11420,2280,1141,114,2280,114,2394,11421,11473,7983,2394,11421,100,10,4,20,1,2000,200,80,100,10,4,2280,114,2394,114,21,114,228,2394,2394,(分),135,74,0,2,4,1,5,3,5,2,4,9,9,9,9,0,3.,算一算,并和同伴说一说你的计算过程。,4.,森林医生。,121,14,4,8,4,1,2,1,0,6,5,304,58,2,7,2,0,7,1,7,9,1,2,809,27,3,6,6,8,1,6,4,7,1,3,5,1,1,9,6,1,4,2,4,3,5,1,2,6,7,1,3,8,2,5.,算一算,并和同伴说一说计算过程。,6.,包装一个小礼盒需要,31,厘米长的彩带,现有,320,个这样的小礼盒,估一估,准备,90,米的彩带够吗?,7.,8.,