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倪晏弘4981一道二年级数学扩展思维题 -
苍田春19815481413 ______ 答:5只. 思路:经过思考,可只大雁的排列至少有一只处在若干行的公共点上.在推理,可只大雁的排列方法为(0代表大雁): 0 0 0 0 0 经核对,符合题意.

倪晏弘4981数学奥数题,小学二年级2只鹅和3只鸡重13千克,3只鹅和2只鸡重
苍田春19815481413 ______ 鸡重:13-(13 17)÷(2 3)*2=1(千克);鹅重:(13-1*3)÷2=5(千克).

倪晏弘4981数学题二年级上册: -
苍田春19815481413 ______ 1,长方体和正方体有几条对称轴,在小学数学中,立体图形不讲对称轴,平面图形 才有对称轴.长方形和正方形各有2、4条对称轴.2,5X2表示的含义有许多,可以是买5千克苹果,每千克2元共付5X2元,2组每组5人 的总人数······一般来说,表示5个2相加或2个5相加,3,5个3连加是( )是列式写结果.填空题的话,直接写结果.4,数学书看成是长方形时有对称轴.在小学数学中,数学书有对称轴.应判断为对.5,线段可以测量长度.判断为对.

倪晏弘4981小学二年级数学题:32÷8表示32是4的8倍.请问对不对? -
苍田春19815481413 ______ ① 把32平均分成8份,取其中的一份.② 32是8的几倍 ③8除32 ④32被8除 ⑤32里面有几个8

倪晏弘4981求小学二年级数学上册应用题 -
苍田春19815481413 ______ 先来热热身吧:如果1+5=12,3+8=19,20+65=265,那么5+1=多少? (1)班有48人,平均分成6个劳动小组,每个小组有多少人? (2) 小红、小英、小方三人踢毽子,小红一次踢18个,小英一次踢2个,小方一次踢6个,小红一次踢的是小方...

倪晏弘4981小学二年级数学题
苍田春19815481413 ______ 如果全是自行车那么车轮是12*2=24 所以比实际少28-24=4 因此4÷(3-2)=4 三轮车 12-4=8 自行车

倪晏弘4981数学二年级上册观察物体怎样观察左右 -
苍田春19815481413 ______[答案] 是通过学生的直接感官来观察的,训练学生的空间思维和空间想象能力! 图中人物的背对学生,看到的跟学生看的相同,面对学生跟学生看到的相反.只要抓住这一点来引导学生就不会错!

倪晏弘4981二年级数学线段题 -
苍田春19815481413 ______ 认识线段课件(二年级数学课件)http://wenku.baidu.com/view/6c4714ee998fcc22bcd10d6c.html

倪晏弘4981小学二年级上册数学题:小明手里拿8个苹果给小兰,还多6个,问:小明手里多多少个? -
苍田春19815481413 ______ 8+6=14(个) 答:14个.

倪晏弘4981数学思维题 -
苍田春19815481413 ______ 十七分之二