灵鹊做题网8.6×1.37-0.86×307用简便
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/11 22:06:41
8.6×3分之2+8.6÷3=8.6*（2/3）+8.6*（1/3）=8.6*（2/3+1/3）=8.6*1=8.64.5×9.2+0.45×8=4.5*9.2+4.5*0.8=4.5*（9.2+0.
1.=8.6*2/3+8.6*1/3=8.6*（2/3+1/3)=8.6*1=8.62.=2.74*二又五分之四+7.26*二又五分之四=二又五分之四*（2.74+7.26）=二又五分之四*10=28
=8.6×2.7+62×0.14+3.5×8.6=8.6×(2.7+3.5)+6.2×1.4=8.6×6.2+6.2×1.4=(8.6+1.4)×6.2=10×6.2=62
99*0.86+0.86=(99+1)*0.86=100*0.86=86
原式=（1.37+8.63）²=10²=100
zeropointeightysixpercent
12.8×0.86+0.72×8.6=1.28×8.6+0.72×8.6=(1.28+0.72)X8.6=2X8.6=17.2
0.28×8.6＋7.2×0.86=0.28×8.6＋0.72×8.6=(0.28＋0.72)×8.6=1×8.6=8.6999×778＋333×666=999×778＋999×222=999×（77
8又5分之3×2.7+62×14%+35×0.86=8.6×2.7+62×0.14+35×0.86=8.6×2.7+62×0.14+3.5×8.6=8.6×(2.7+3.5)+6.2×1.4=8.6×
8.6*三分之一+8.6/3=(8.6+8.6)×3分之1=17.6×3分之1=176/30=86/15
3*0.14+0.86/3分之1简算=3×(0.14+0.86)=3×1=3如果本题有什么不明白可以追问,
0.86＋8.6×9.9=8.6x0.1+8.6x9.9=8.6x(0.1+9.9)=8.6x10=86
8.6*5.4+0.86*+86*0.45=8.6*5.4+8.6*0.1+8.6*4.5=8.6*(5.4+0.1+4.5)=8.6*10=86
=1.3*8.6+8.6*8.6+8.6*0.1=8.6（1.3+8.6+0.1）=8.6*10=86
0.28×8.6+7.2×0.86=0.28*8.6+0.72*8.6=(0.28+0.72)*8.6=1*8.6=8.6999×778+333×666=999*778+333*3*222=999*(
0.86+8.6*9.9=8.6*0.1+8.6*9.9=8.6*(0.1+9.9)=8.6*10=86再问：还可以问一下吗？再答：什么问题？再问：再答：原式=[5.1+(3.6-2.4)×(19/1
205×16=（200+5）×16=200×16+5×16=3200+80=328060×（4/3-2/3+2/5)=60×(2/3+2/5)=60×2/3+60×2/5=40+24=645.37-(
(X+X-0.1+9.1)/3=8.62x+9=8.6*32x=25.8-92x=16.8x=8.4
8.6*2.7+62*14%+35*0.86=0.86*27+62*0.14+35*0.86=0.86*(27+35)+62*0.14=0.86*62+62*0.14=62*(0.86+0.14)=6