问题
解答题
计算: (1)23-
(2)(3.14-π)0-
(3)
(4)|
|
答案
(1)原式=8-5+7
=10;
(2)原式=1-9+4
=-4;
(3)原式=5+0.7-2
=3.7;
(4)原式=3-
-1+22
=4-
.2
计算: (1)23-
(2)(3.14-π)0-
(3)
(4)|
|
(1)原式=8-5+7
=10;
(2)原式=1-9+4
=-4;
(3)原式=5+0.7-2
=3.7;
(4)原式=3-
-1+22
=4-
.2