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(3.75%3.75x0.4)1.3+0.2简便计算

(1)62.8×19-8×6245-6245,=62.8×(19-8-1),=62.8×10,=628;(2)9511-(3.75+4511),=9511-3.75-4511,=9511-4511-3.75,=5-3.75,=1.25;(3)10.04-[1-(1-0.5×13)],=10.04-[1-(1-16)],=10.04-[1-56],=10.04-16,=25-16,=2456;...

三又四分之十五乘一点二五加37.5乘0.975,减375% =3+3.75x1.25+37.5x0.975-3.75 =3+3.75x(1.25+9.75-1) =3+3.75x10 =3+37.5 =40.5 请采纳正确答案,你们只提问,不采纳正确答案,回答都没有劲!谢谢管理员推荐采纳!! 朋友,请【采纳答案】,...

[3.75-(0.2+1/3)×4.5]÷13.5 =[3.75-0.2×4.5-1/3×4.5]÷13.5 =[3.75-0.9-1.5]÷13.5 =1.35÷13.5 =0.1

原式 =1/16×(-2/5)+(11又9/24+2又8/24-13又18/24)×24-(-5)³ =-1/40+(-1/24)×24-(-125) =-1/40-1+125 =123又39/40

[3.75-(0.2 +1/3)x4又1/2]÷13.5% =[3.75-8/15x9/2]÷13.5% =[3.75-2.4]÷13.5% =1.35÷13.5% =10

[3.75-(0.2+1/3)×4.5]÷(8.05+5又9/20) =[3.75-0.9-1.5]÷13.5 =1.35÷13.5 =0.1

(1)=3.7*0.15+2.1*3*0.15 =3.7*0.15+6.3*0.15 =0.15*(3.7+6.3) = 0.15*10 =1.5 (2)=3.75*4.23*36-1.25*100*0.423*2.8 =3.75*4.23*36-1.25*4.23*28 =1.25*3*4.23*36-1.25*4.23*28 =1.25*4.23*108-1.25*4.23*28 =1.25*4.23*80 =100*4.23 =423

9.875-(3又8分之7-75%)+3又4分之1 =9.875-3又8分之7+75%+3又4分之1 =6+4 =10

你敢用公式写出来吗

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