题目内容
计算:(0.0081)-
-10×0.027
+lg
-lg25______.
1 |
4 |
1 |
3 |
1 |
4 |
(0.0081)-
-10×0.027
+lg
-lg25
=
-10×
+lg(
÷25)
=
-10×0.3+lg(0.01)
=
-3-2
=-
故答案为:-
.
1 |
4 |
1 |
3 |
1 |
4 |
=
1 | |||
|
3 | 0.027 |
1 |
4 |
=
1 |
0.3 |
=
10 |
3 |
=-
5 |
3 |
故答案为:-
5 |
3 |
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