《六年级上册数学课件6.4百分数与分数的互化丨苏教版共11张PPT1》由会员分享,可在线阅读,更多相关《六年级上册数学课件6.4百分数与分数的互化丨苏教版共11张PPT1(11页珍藏版)》请在金锄头文库上搜索。
1、百分数和分数互化百分数和分数互化1 1、把下面的小数改写成百分数:、把下面的小数改写成百分数:0.12 1.8 50.12 1.8 50.07 0.1090.07 0.109=12%=12%=180%=180%=500%=500%=7%=7%=10.9%=10.9%2 2、把下面的百分数改写成小数:、把下面的百分数改写成小数:70% 106% 0.8%70% 106% 0.8%34% 200%34% 200%=0.7=0.7=1.06=1.06=0.008=0.008=0.34=0.34=2=223754312.5125810.330%0.2525%0.5252%判断:判断:5.6=56% (
2、 )5.6=56% ( ) =0.4% ( =0.4% ( ) )1=100% ( )1=100% ( )9%= ( )9%= ( )0.7%=70 ( )0.7%=70 ( )315%=3.15 ( )315%=3.15 ( )把下列各数按从小到达的顺序排列起来:把下列各数按从小到达的顺序排列起来:0.85 85.1% 0.85 85.1%0.8330.833 =0.875 =0.87585.1%=0.85185.1%=0.8510.8330.850.8510.8750.8330.850.8510.875找朋友:找朋友:36%36%0.450.45450%450%250%250%2.52.545%45%4 40.360.361.11.11.1%1.1%0.0110.011110%110%按规律在括号里填数:按规律在括号里填数: 1 ,100%,0.75, ,( )%,( ) 250 15% ,0.2, ,( )%,( ) 30