《除数是小数的除法专项练习课件ppt 教学课件》由会员分享,可在线阅读,更多相关《除数是小数的除法专项练习课件ppt 教学课件(23页珍藏版)》请在金锄头文库上搜索。
1、小数的除法,五年级第一学期,口算训练:,6.37= 1.82= 4.86= 7.28=,0.549= 0.4515= 2 4= 72.7272=,0.9,0.9,0.8,0.9,0.06,0.03,0.5,1.01,口答:下列各数去掉小数点各扩大了多少倍?,1.2,0.18,0.125,4.37,3.085,9.6,填空:,(1)6米=( )分米=( )厘米,(2)12厘米=( )分米=( )米,(3)6000 1200=600 ( ) =( )12=6 ( ),60,600,1.2,0.12,120,60,1.2,例1,把一块6米长的布,剪成1.2米长的一段,可以剪多少段?,0,1,2,3,
2、4,5,6M,专项练习(一):,0.120.3=( )3,(1),1.2,专项练习(一):,0.270.2=( )2,(2),2.7,专项练习(一):,93.51.7=( )17,(3),935,专项练习(一):,5.8213.696 =( )3696,(4),5821,2.80.007 =( )7,专项练习(一):,(5),2800,专项练习(一):,760.025 =( )25,(6),76000,专项练习(二):,5.281)3.696,(1),专项练习(二):,5.28)369.6,(2),0,专项练习(二):,5.28)3.696,(3),.,对比练习:,(1)36.180.18=,
3、(2)361.80.18=,(3)36180.18=,(4)3.6180.18=,201,2010,20100,20.1,巩固练习:,看除式把除数转化成整数,在计算:,(1)0.0320.08 = =,3.2 8,0.4,(2)0.160.08 = =,16 8,2,(3)5.40.09 = =,540 9,60,(4)40.08 = =,400 8,50,口算训练:,0.810.27= 7.2 0.6 = 10.8100 = 0.1080.1=,3,12,0.108,1.08,口算训练:,1.6 0.8 = 0.480.4 = 0.240.12= 7.2 0.9 =,2,1.2,2,8,25.2 0.36=,列竖式计算:,0.0910.5 =,9.1 0.5 =,谢谢观赏,