四年级数学上册课件《两、三位数除以两位数练习二》新苏教版.ppt

,第3课时练习二,第二单元两、三位数除以两位数,练习二,1,18020,7010,30060,9,7,5,32040,35070,72090,8,5,8,练习二,2,2,0,8,0,2,0,8,5,练习二,2,0,2,1,0,4,0,9,4,3,2,练习二,3用竖式计算，并验算。,9920,51090,4,0,8,9,1,0,5,0,5,6,4,2041999,90560510,绿色圃小学教育网http:/www.L绿色圃中学资源网http:/cz.L,练习二,3用竖式计算，并验算。,35750,26580,0,5,7,7,3,0,4,5,3,2,2,5077357,80325265,练习二,4,60分（）时,180分（）时,420分（）时,60秒（）分,300秒（）分,540秒（）分,1,3,7,1,5,9,练习二,5一只东北虎的体重是200千克，一只金钱豹的体重是50千克。东北虎的体重是金钱豹的几倍？,200504,答：东北虎的体重是金钱豹的4倍。,练习二,6,3,9,0,6,0,6,0,2,0,2,8,0,5,9,4,0,1,1,9,1,5,0,2,0,2,0,4,0,0,0,练习二,7算一算，比一比。,0,2,2,1,1,0,0,3,4,5,2,4,6,2,1,0,4,32420,32460,练习二,7算一算，比一比。,0,3,5,1,1,0,5,4,6,9,6,5,5,1,0,6,45630,45650,练习二,7算一算，比一比。,0,4,5,1,0,4,2,5,6,5,1,4,0,5,45540,25540,1,1,练习二,8花花有388枝玫瑰花，每30枝扎成一束，可以扎成几束，还剩多少枝？,3883012（束）28（枝）,答：可以扎成12束，还剩28枝。,练习二,94种昆虫飞行时翅膀每秒振动的次数如下表：,（1）苍蝇翅膀每秒振动的次数是蜻蜓的多少倍？,3603012,答：苍蝇翅膀每秒振动的次数是蜻蜓的12倍。,练习二,94种昆虫飞行时翅膀每秒振动的次数如下表：,（2）你还能提出什么问题？,练习二,10,45050,28070,18090,508,704,902,8,400,4,280,2,180,练习二,11先说出商是几位数，再计算。,8730,82040,2,0,6,7,2,0,0,0,2,2,8,0,练习二,11先说出商是几位数，再计算。,0,6,5,4,7,6,62480,81660,0,6,1,1,6,3,8,0,6,3,2,1,练习二,12,90030060,（60090）30,163040,750（2327）,9005,54030,895,18,48040,75050,120,15,练习二,13,4,4,4,4,4,练习二,14青山果园收获了300箱苹果和260箱梨，一辆卡车每次能运40箱，多少次才能全部运完？,（300260）4014（次）,答：14次才能全部运完。,练习二,15王大伯准备围一块360平方米的长方形地培育树苗。如果这块地长90