先观察，能用简便算法的用简便算法计算.:a*z;{7n+m-u9[/L5x*y9F*}0i6C3k(m4[,A1M;]
5.17－1.8－3.2:a*z;{7n+m-u9[/L5x*y9F*}0i6C3k(m4[,A1M;]
算式：提示.z8A1~5{0J6a:a*z;{7n+m-u9[/L5x*y9F*}0i6C3k(m4[,A1M;]
)N;?4k7A,G7N0T+M(|:a*z;{7n+m-u9[/L5x*y9F*}0i6C3k(m4[,A1M;]
9.95－（4.95＋3.14）:a*z;{7n+m-u9[/L5x*y9F*}0i6C3k(m4[,A1M;]
算式：提示8Y*}2H:r6V4w:a*z;{7n+m-u9[/L5x*y9F*}0i6C3k(m4[,A1M;]
7T0I)W7n5h2J:a*z;{7n+m-u9[/L5x*y9F*}0i6C3k(m4[,A1M;]
8.43＋2.87＋0.57＋0.13:a*z;{7n+m-u9[/L5x*y9F*}0i6C3k(m4[,A1M;]
算式：提示.\)y7u7@4N*H)|:a*z;{7n+m-u9[/L5x*y9F*}0i6C3k(m4[,A1M;]
＝'D0d4}2[5k3c8S.L8m1^(S:a*z;{7n+m-u9[/L5x*y9F*}0i6C3k(m4[,A1M;]