(完整版)有理数混合运算专题训练100题及答案

9.113 2,-( 1- )壬(3 21 14 71.10.-13xrO^x_+_xH3)-_x0^2.諛迸）号着討41L3（心诂心3,CL8xZ + 48x(—2)-2"」+(m'11 7 7 1