四年级数学上册第6单元《除数是两位数的除法》笔算除法(例5)课件新人教版.ppt

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除数是两位数的除法 除数是两位数商两位数的笔算除法(例5),你知道吗?,商是几位数?为什么?4)948 4)348,四年级数学,学校共有576名学生,每18人组成一个环保小组。可以组成多少组?,四年级数学,57618=,1 8 ) 5 7 6,十月是学校环保月共收集了930节废电池,平均每天收集多少节?,练一练: 80523 82659 148747,9,13,12,3,600 15=40(分钟)4 0 15)6 0 0 6 0 0 答:这部电视连续剧每天要播40分钟。,1下面各题,列出综合算式,(1)25和40的积是163与87的和的多少倍?,2540( 163 + 87 ),(2)540除以3与6的和的2倍,商是多少?,540 ( 3 + 6 ) 2 ,课堂检测A,20,7,31,8,6,22,14,8,936 26=36(人) 答:电影院每排可以坐36人。,课堂检测B,

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