5.83+2.98的简便算法是请选择ＣＢＡ4N0C/|,d;s-`:b0\4?0_.];m,r-L3q2g8P4S3R0l2K)];b
A．5.83 +3 +0.02;m,r-L3q2g8P4S3R0l2K)];b
B．5.83 +3 -0.02;m,r-L3q2g8P4S3R0l2K)];b
C．2.98+5.83;m,r-L3q2g8P4S3R0l2K)];b