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-3.14x35.2+6.28x(-23.3)-1.57x36.4

-3.14x35.2+6.28x(-23.3)-1.57x36.4 =-3.14x35.2+3.14x(-46.6)-3.14x18.2 =-3.14x(35.2+46.6+18.2) =-3.14x100 =-314

-14x3/4-0.34x3/7+1/4x(-14)+4/7x(-0.34) =-14x3/4-0.34x3/7-1/4x14-4/7x0.34 =-14*(四分之三+四分之一)-0.34*(七分之三+七分之四) =-14-0.34 =-14.34 第一个题怎么看怎么 第一个数是6.28 那我按6.26算了哈 原式=-3.14(46.6+35.3+18.2) =-...

(-3.14)x 35.2 + 6.28 x (-23.3) - 1.57 x 36.4 =-(3.14 x 35.2+3.14 x 2 x 23.3+3.14 x 0.5 x36.6) 提公因子3.14 原式=-3.14x(35.2+46.6+18.2) =-3.14 x 100 =-314

-3.14×35.2+6.28×(-23.3)-1.57×36.4 =-3.14×35.2+3.14x(-46.6)-3.14×18.2 =3.14×(-35.2-46.6-18.2) =3.14x-100 =-314

-3.14X35.2X(-23.3)-1.57X36.4 =3.14X 35.2X23.3-1/2X3.14X36.4 =3.14X(35.2X23.3-1/2X36.4) =3.14X(820.16-18.2) =3.14X801...

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