分数混合运算100道
来源:学生作业帮助网 编辑:作业帮 时间:2024/11/08 07:58:47
你不会是要出期末考试卷子吧?再问:给学生的
1.3/7×49/9-4/32.8/9×15/36+1/273.12×5/6–2/9×34.8×5/4+1/45.6÷3/8–3/8÷66.4/7×5/9+3/7×5/97.5/2-(3/2+4/5)
45×2/3+1/3×1527.7/19+12/19×5/628.1/4+3/4÷2/329.8/7×21/16+1/230.101×1/5–1/5×2131.50+160÷40(58+370)÷(6
3/5-1/4+3/5=?4/15+9/20-3/10=?18/20-(1/4+2/5)=?5/8+7/12-4/9=?17/18-(1/12+1/6)=?1/2+1/4-1/8=?(14/15-2/
都可以约分,分母还是一样的!11211/27328/3441/45255/1665/971/5810/9925/3101/31113/14127132414251531/21166先写这么多
7511651-------------+-------------+-------------86127142
5/2-(3/2+4/5)7/8+(1/8+1/9)9/7-(2/7–10/21)5/8+5/6+1/9240/400+12/400-150/400186/24+88/24-252/2414/3-(3
1.125*3+125*5+25*3+252.9999*3+101*11*(101-92)3.(23/4-3/4)*(3*6+2)4.3/7×49/9-4/35.8/9×15/36+1/276.12×
1.3/7×49/9-4/32.8/9×15/36+1/273.12×5/6–2/9×34.8×5/4+1/45.6÷3/8–3/8÷66.4/7×5/9+3/7×5/97.5/2-(3/2+4/5)
•\x09(1)4×1÷1=•\x09(2)17-9-2=•\x09(3)4÷2-1=•\x09(4)11×1×4=•\x09(5)10+6
1.1/5*100+12/15*1002.2/5*100+3/5*1003.3/5*100+2/5*1004.4/5*100+1/5*100=1005.1/99*0.01+98/99*0.016.2/
http://www.i3721.com/xx/tbstdq/wnj/xkbsxd10c/上面有教案大全|一年级|二年级|三年级|四年级|五年级|六年级|七年级|八年级|九年级|高一|高二|高三插图大
1.3/7×49/9-4/32.8/9×15/36+1/273.12×5/6–2/9×34.8×5/4+1/45.6÷3/8–3/8÷66.4/7×5/9+3/7×5/97.5/2-(3/2+4/5)
怎么没有问题?再问:问题就是:100道分数小数混合运算,要过程和答案再答:hoho
1.3/7×49/9-4/32.8/9×15/36+1/273.12×5/6–2/9×34.8×5/4+1/45.6÷3/8–3/8÷66.4/7×5/9+3/7×5/97.5/2-(3/2+4/5)
1/7+3/8+5/7=1/7+5/7+3/8=6/7+3/8=48/56+21/56=69/56先分母相同进行运算,再约分1-5/9-4/9=1-(5/9+4/9)=1-1=0连减几个数,等于减去这
7511651-------------+-------------+-------------8612714217255258---------------1-------〔----+----〕42
1.3/7×49/9-4/32.8/9×15/36+1/273.12×5/6–2/9×34.8×5/4+1/45.6÷3/8–3/8÷66.4/7×5/9+3/7×5/97.5/2-(3/2+4/5)
9/8-6/5+3/1=?3/2-6/3+5/2-4/3=?8/5-7/3+9/2+3/1=?2/3-2/5+2/4=5/7+7/5+7/2-5/2=6/8-6/5+2/5=5/8-6/4-2/7+7
方程一:8x+3/2x=19/2x=9,所以,x=9*2/19=18/19.方程二:x-1/4x=3/4x=12,所以,x=12*4/3=16.方程三:x=12-3/2=24/2-3/2=21/2.