早教吧作业答案频道 -->数学-->
84又4/19×1.375+105又5/19×0.8(2003+20032003+200320032003)/(2004+20042004+200420042004)2003÷2003又2003/2004
题目详情
84又4/19×1.375+105又5/19×0.8
(2003+20032003+200320032003)/(2004+20042004+200420042004)
2003÷2003又2003/2004
(2003+20032003+200320032003)/(2004+20042004+200420042004)
2003÷2003又2003/2004
▼优质解答
答案和解析
84又4/19×1.375+105又5/19×0.8
=(84+4/19)x11/8+(105+5/19)x0.8
=84x11/8+11/38+105x0.8+5/19x0.8
=115.5+11/38+84+4/19
=199.5+(11+8)/38
=199.5+0.5
=200
(2003+20032003+200320032003)/(2004+20042004+200420042004)
=[2003x(1+10001+100010001)]/[2004x(1+10001+100010001)]
=2003/2004
2003÷2003又2003/2004
=2003/[2003+2003/2004]
=2003/[2003x(1+1/2004)]
=1/[1+1/2004]
=2004/2005
急,有追加!
=(84+4/19)x11/8+(105+5/19)x0.8
=84x11/8+11/38+105x0.8+5/19x0.8
=115.5+11/38+84+4/19
=199.5+(11+8)/38
=199.5+0.5
=200
(2003+20032003+200320032003)/(2004+20042004+200420042004)
=[2003x(1+10001+100010001)]/[2004x(1+10001+100010001)]
=2003/2004
2003÷2003又2003/2004
=2003/[2003+2003/2004]
=2003/[2003x(1+1/2004)]
=1/[1+1/2004]
=2004/2005
急,有追加!
看了 84又4/19×1.375+...的网友还看了以下:
计算下面各题,能简便计算的用简便方法计算.7.4×9.8-14.513.4+5.62+17.6+4 2020-04-07 …
口算2.4+0.73=3.08×4=537-99=2.6×0.3=3-0.71-0.19=8-0. 2020-04-07 …
2.8×9.05+9.8×1.056.7×5.3-4.7+5.35.68-4.45+5.32-2. 2020-04-07 …
求救测量同一黄铜的密度时,一学生测得ρ1=8.4±0.3g/立方厘米,另一个学生测得ρ2=8.81 2020-06-05 …
位似图形的变化...在平面坐标系中,依次连接点(0,0)(10,8)(6,0)(10,1)(10, 2020-06-07 …
口算.(1)7.2+2.08=(2)13+14=(3)710÷12=(4)0÷0.99=(5)32 2020-07-09 …
计算下面各题,能简便计算的用简便方法计算.7.4×9.8-14.513.4+5.62+17.6+4 2020-07-20 …
直接写出得数9+7.8-3.8=5÷2×0.8=0.7+0.4×1.5=2.4-2.4÷1.2=0. 2020-11-19 …
直接写得数:0.06×0.25=0.8×1.25=10-0.01=8.1÷0.03=3×0.2×0. 2020-11-19 …
我是口算小能手:0.3×1.5=7.5×0.8=0.7×0.9×10=0.36÷100=4.8÷4= 2020-12-08 …