简便计算4*0.6+0.6/3/5递等式:0.75*4/0.75*4 【 0.4+(1-5/3)/3/2】/25/8解方程1.8/(x-0.3)=0.6

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简便计算4*0.6+0.6/3/5递等式:0.75*4/0.75*4 【 0.4+(1-5/3)/3/2】/25/8解方程1.8/(x-0.3)=0.6

简便计算4*0.6+0.6/3/5递等式:0.75*4/0.75*4 【 0.4+(1-5/3)/3/2】/25/8解方程1.8/(x-0.3)=0.6
简便计算4*0.6+0.6/3/5递等式:0.75*4/0.75*4 【 0.4+(1-5/3)/3/2】/25/8解方程1.8/(x-0.3)=0.6

简便计算4*0.6+0.6/3/5递等式:0.75*4/0.75*4 【 0.4+(1-5/3)/3/2】/25/8解方程1.8/(x-0.3)=0.6
2.44
第二个 =3/0.75*4 【 0.4+(1-5/3)/3/2】/25/8
= 4*4 【 0.4+(1-5/3)/3/2】/25/8
= 16【 0.4+(-2/3)/3/2】/25/8
=16【 0.4+(-2/9/2】/25/8
=16【 0.4+(-1/9】/25/8
=16(0.4-1/9)/200
= 16*(13/45)/200
= 208/45/200
=13/1125
第三题 1.8=0.6(x-0.3)
1.8=0.6x-0,18
1.8 + 0,18=0.6x
x=3.3
天啦,做的还真有点纠结,应该没错吧··
关于计算顺序的问题是先算乘除 后加减,有括号的先算括号内的;如果都是加减或乘除的话,从左到右依次算··
要加油啦··