计算下面各题。.n5e3I'T5f4n+h1K*G.K-s*[+Q:A9U
(1)147+360-60.n5e3I'T5f4n+h1K*G.K-s*[+Q:A9U
算式:提示7{;[:~8Y'W1n)?-K6o.O.n5e3I'T5f4n+h1K*G.K-s*[+Q:A9U
(2)580+294-180.n5e3I'T5f4n+h1K*G.K-s*[+Q:A9U
算式:提示0d6T,D,^6x4g3H.n5e3I'T5f4n+h1K*G.K-s*[+Q:A9U
(3)254+92+108-54.n5e3I'T5f4n+h1K*G.K-s*[+Q:A9U
算式:提示-J5s5};S:h-n2M.n5e3I'T5f4n+h1K*G.K-s*[+Q:A9U