资源描述
单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,五 加与减,买电器,北师大数学二年级下册,500,元,960,元,800,元,200,元,你可以提出什么问题?,买,1,台洗衣机和,1,台电视机一共花多少元?,500,元,960,元,800,元,200,元,买,1,台洗衣机和,1,台电视机一共花多少元?,500,600,700,800,900,1000,1100,1200,1300,1300,500,元,960,元,800,元,200,元,买,1,台洗衣机和,1,台电视机一共花多少元?,千,百,十,个,500,元,960,元,800,元,200,元,买,1,台洗衣机和,1,台电视机一共花多少元?,500+800=1300,(元),答:买,1,台洗衣机和,1,台电视机一共花,1300,元。,500,元,960,元,800,元,200,元,你可以提出其他问题吗?,买,1,台洗衣机比买,1,台电视机少花多少元?,500,元,960,元,800,元,200,元,买,1,台洗衣机比买,1,台电视机少花多少元?,300,400,500,600,700,800,800,500,元,960,元,800,元,200,元,买,1,台洗衣机比买,1,台电视机少花多少元?,千,百,十,个,500,元,960,元,800,元,200,元,买,1,台洗衣机比买,1,台电视机少花多少元?,800,500=300,(元),答:买,1,台洗衣机比买,1,台电视机少花,300,元。,练一练,1.,画一画填一填,并在计算器上拨一拨。,2.340+90= 670-600= 730+500= 1800+200=,340-90= 670-60= 730-500= 1800-200=,练一练,3.,乐乐希望每天能多跑一点。下表是她五天的长跑记录。,4.,我说你算。,(,1,)周二比周一多跑多少米?周三比周二呢?,(,2,)请你再提出一个数学问题,并尝试解答?,练一练,5.,填什么数才能打中?填出两种情况。,
展开阅读全文