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(5.9+1.65)*.025用简便方法计算

(5.9+1.65)*0.025=(5.9+0.1+1.55)*0.025=(6+1.55)*0.025=7.55*0.025=7.55/40=7.55/4/10=1.8875/10=0.18875

=7.55÷2.5 =(7.55*4)÷(2.5*4) =30.2÷10 =3.02

(5.9+1.65)除以2.5 =7.55÷2.5=(7.55*4)÷(2.5*4)=30.2÷10=3.02√希望你能看懂,你能明白, 望采纳,赞同

(1)(5.9+1.65)÷0.25,=7.55÷0.25,=30.2;(2)56*(1-)÷,=56*÷,=24÷,=33;(3)0.6÷[÷(+)],=0.6÷[÷],=0.6,=;(4)*+÷,=*+*,=(+)*,=1*,=.

(5.9+1.65)÷0.25 =5.9÷0.25+1.65÷0.25 =23.6+6.6 =30.2

59x101-59 =59x(100+1)-59 =59x100+59x1-59 =5900+59-59=5900

原式=5.9*(5.9+5.1-1)=5.9*10=59 祝你学习进步!

脱式计算过程方法如下解:5.9-1.62-2.05=5.9-(1.62+2.05)=5.9-3.67=2.23

原式=(4.71-2.71)+1.65=2+1.65=3.65

16.8-6.8*0.25=16.8-6.8/4=16.8-1.7=15.1

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