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3.14x36=()

3.14x36x1/4=3.14x9=28.26

呵呵,这样的都不会,还是好好的学习吧!!!

3.14x14x5+2x3.14x36 =3.14 x (14 x 5 + 2 x 36) =3

56.52

(一3.14)x35.2十6.28x(一23.3)一1.57x36.4 =(一3.14)x35.2

1.1304

-3.14x35.2+6.28x(-32.9)-33.26+36.4=-314

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

-3.14x35.2+6.28x(-23.3)-1.57x36.4 =-3.14x35.2+3.1

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