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3.14x36

竖式 3. 1 4 x 3 6 ______________ 1 8 8 4 9 4 2 ———————— 1 1 3. 0 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

计算结果等于1884/5,等于376.8

56.52

提取公因数3.14,则原式变为 3.14X[-35.2+2X(-23.3)-0.5X36.4] =3.14X[-35.2-46.6-18.2] =3.14X(-100) =-314

3.14 x22+1.57x36+(-6.28)x15 =3.14x22+1.57x2x18-3.14x2x15 =3.14x(22+18-30) =3.14x10 =31.4

1.1304

(-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

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