30道分数混合运算六年级
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/06 14:23:09
1.老师在黑板上写了13个自然数,让小王计算平均数(保留两位小数),小王计算出的答案上12.43.老师说最后一位数字错了,其他的数字都对.请问正确的答案应该是________. 2.老王的体重的2/
(1/3+1/4)x6/7=7/12×6/7=1/21/2÷3/4+3/8=1/2×4/3+3/8=2/3+3/8=(16+9)/24=25/242/3x5/7+2/7÷3/2=10/21+2/7×2
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)
题:5/9X(9/5+18)5/9X5/6+4/9÷6/5=5/9×9/5+5/9×18=5/9×5/6+4/9×5/6=1+10=(5/9+4/9)×5/6=11=1×5/6=5/613/14-15
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先算乘除再算加减,有括号的先算括号里的,同一级运算从左往右依次运算.
设全长a千米,则228+5/8a-7=4/5a解得a=120
方法一:80÷(80÷15+80÷40)=80÷(16/3+2)=80÷22/3=120/11小时方法二:1÷(1÷15+1÷40)=1÷(1/15+1/40)=1÷11/120=120/11小时
你好!够了吧!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/
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
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)
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
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+7/5=2/8+5/9-3/5=8/7-3/2+3/4=9/5-2/1+3/5=6/7-5/2+
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)
1.3/7×49/9-4/32.8/9×15/36+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)
1.125×3+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)
第一题你说得很对!63人,其中男生占全班的9分之5,男生那个35人,能被15整除的离63最近的就是60,能被8整除的离35最近的就是32,转走3个男生再问:看不懂....再答:算了设x吧转走x个男生(
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)