题目内容
计算(lg-lg25)÷100-=________.
(1)loga2+loga(a>0,a≠1)
(2)log318-log32
(3)lg-lg25
(4)2log510+log50.25
(5)2log525+3log264
(6)log2(log216)
计算:(lg-lg25)÷1000=________
计算(lg-lg25)÷100=________;
计算(lg-lg25)÷100=________.