1、北师大版 五年级上册 第一单元 小数除法,0.3,5.1,0.3,1,3,2,1,7,2 1,0,5.10.3,17(分),5 4,7.2,7,5 0 4,3,6,5,3 6 0,0,547.2,7.5(分),0,0,答:淘气打电话的时间是7.5分。,1.,乌龟、蚂蚁从小兔家回到自己家各需要多长时间?分别用竖式算一算,并说一说竖式中每一步的意思。,2.想一想,填一填。,11.70.9 (11.710)(0.9 ) ,10,117,9,13,3.圈一圈,填一填。,3.60.4,9,5.2 8,1.2,4,4 8,4,8,4,4 8,0,5.281.2,4.4(元),答:每千克4.4元。,5.2
2、8,0.03,1,3,2,2,6,2 1,1,7,8,1 8,0,176,8.4,0.56,1,5 6,2,8,2 8 0,5,0,0,0,15,4.淘气的妈妈要将2.6kg油分装在一些玻璃瓶里,如果都装在小瓶里,至少需要准备几个小瓶?要是都装在大瓶里呢?,5.用竖式计算,并验算。,0.120.25,6.30.42,41.626,1.682.1,0.60.12,70.35,0.48,15,1.6,0.8,5,20,6.森林医生。,0.6 3,0.7,0,6 3,9,0,27.9,4 5,27,9,6 2,0,9 0,0,0.4,0.5,0 .,4,8,0,0,0,0,0,8,0,7.填一填,说一说你是怎么想的。,0.780.2( )2,0.750.25( )25,4.060.58( )( ),320.08( )( ),7.8,75,406,58,3200,8,8.长方形的长是1.2m,面积是0.6m2,它的宽是多少米?,0.61.20.5(m),9.想一想,填一填。,4.25,2.25,64.9,4.4,