1/4x[4.85/5/18-3.6+6.15x3又3/5]+[1.75x(1又2/3+19/21)+5.5]

blue-eyes2022-10-04 11:39:543条回答

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xiaobaixue 共回答了16个问题 | 采纳率81.3%: 1/4x[4.85/5/18-3.6+6.15x3又3/5]+[1.75x(1又2/3+19/21)+5.5]
=1/4x[4.85×3.6-3.6+6.15x3.6]+[1.75x18/7+5.5]
=1/4x[（4.85-1+6.15）×3.6]+[4.5+5.5]
=1/4×10×3.6+10
=9+10
=19; 1年前

xiaobearggfurrylo 共回答了9372个问题 | 采纳率: 1/4x[4.85/5/18-3.6+6.15x3又3/5]+[1.75x(1又2/3+19/21)+5.5]
＝1/4x(4.85x3.6-3.6+6.15x3.6)+(7/4x5/3+7/4x19/21+5.5)
=1/4x3.6x(4.85-1+6.15)+(35/12+19/12+5.5)
=0.9x10+(54/12+5.5)
=9+(9/2+5.5)
=9+(4.5+5.5)
=19; 1年前

数学的简便计算,1/4X（4.85*5/18—3.6+6.15X3又3/5） 132又1/130*131 数学的简便计算,1/4X（4.85*5/18—3.6+6.15X3又3/5） 132又1/130*131 1又1/4X17.6+36*4/5+2.64X12.5 *=除号 1/130=先读后面的那个,再读前面的那个,就是130分之1 我要在一个小时内要拿到答案, 8105051年前1: wukong9955 共回答了20个问题 | 采纳率95%

1/4X（4.85÷5/18—3.6+6.15×3又3/5）
=1/4×（4.85×18/5+6.15×18/5-3.6）
=1/4 *（4.85+6.15-1）×18/5
=1/4×10×18/5
=9
132又1/130*131
=（131+131/130）÷131
=131÷131+131/130÷131
=1+1/130
=1又1/130
1又1/4X17.6+36*4/5+2.64X12.5
=1.25×17.6+36×1.25+26.4×1.25
=1.25×（17.6+36+26.4）
=1.25×80
=100

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