在下面的括号内填上适当的数。6E.n6c5r2u,Y;a9L;Q)j;D
1.02千米= -R+V(|.b8M2T*[+x 米6E.n6c5r2u,Y;a9L;Q)j;D
7.8平方米= )B*g7^(|5z4i+z-s(G1c平方米9})N)t+|9|;f/?+c+z8E1]2_(B-P)r 平方分米6E.n6c5r2u,Y;a9L;Q)j;D
3100克= 6W/S,{5t+W千克6E.n6c5r2u,Y;a9L;Q)j;D
,\2_+[*k)V=8U4s(P)w8~)Z7]0_7B/Y/m-j0s3n-V)K吨/j,S4}5O*x0z*V8L(F2u,Y 千克6E.n6c5r2u,Y;a9L;Q)j;D