4.25乘0.16加264称0.0425
来源:学生作业帮助网 编辑:作业帮 时间:2024/05/22 01:10:45
1×2=1/3×(1×2×3-0×1×2)2×3=1/3×(2×3×4-1×2×3)3×4=1/3×(3×4×5-2×3×4)3×(1×2+2×3+3×4+.+99×100)=3×1/3×[(1×2×
1÷1+0×54.98×1=1+0=193×0.125×11-93×10.025×3=93×1.375-93×30.375=93×(1.375-30.375)=93×(-29)=-2697
第一题:1.98*51-199.8*19+1998*0.82=1.98*51-199.8*(19-8.2)=1.98*51-199.8*10.8=100.98-2157.84=-2056.86第二题:
3.14*16*1.8/3=30.144
2乘3乘4加4乘6乘8加.加200乘300乘400=2×3×4×(1+2+3+.+100)=24×(1+100)×100÷2=24×5050=121200
(583乘387加264)份之(387乘584减123)=(583乘387加264)份之(387乘583+387减123)=(583乘387加264)份之(387乘583+264)=1
5.75加4.25乘2加78=5.75+8.5+78=14.25+78=92.250.75乘18÷0.15减6.8=0.75÷0.15×18-6.8=5×18-6.8=90-6.8=83.4
2.4*1.8-4.8*0.4=2.4*2*1.8/2-4.8*0.4=4.8*0.6-4.8*0.4=4.8*(0.6-0.4)=4.8*0.2=2.43.7*8.7+6.2*8.7+0.87=3.
0.75乘4.75加4又4分之3加4又4分之3乘4.25=0.75×4.75+4.75+4.75×4.25=4.75×﹙0.75+1+4.25)=4.75×6=28.5
1
(95/6)x4.25+(41/4)x(1/6)=(95/6)x(41/4)+(41/4)x(1/6)=(41/4)x{(95/6)+(1/6)}=(41/4)x10=(421/2)或者42.5
3.5×(1-0.5)+0.5×5=4.25
54073等于5乘(10000)加4乘(1000)加7乘(10)加3乘(1)
就是3.5×(x-0.5)+0.5x=4.25解出来x是1.5
=264×0.519+264×0.481=264×(0.519+0.481)=264×1=264