问题
解答题
计算题 (1)(
(2)
(3)
(4)(
|
答案
(1)原式=3-5
=-2;
(2)原式=
-22
+5 5 5
=3-2
=1;
(3)原式=
+27 7
-107 7
=-
;55 7 7
(4)原式=2-4
+126
=14-4
.6
计算题 (1)(
(2)
(3)
(4)(
|
(1)原式=3-5
=-2;
(2)原式=
-22
+5 5 5
=3-2
=1;
(3)原式=
+27 7
-107 7
=-
;55 7 7
(4)原式=2-4
+126
=14-4
.6