问题
解答题
计算: (1)
(2)
(3)
(4)
(5)(
(6)
|
答案
(1)原式=1.2-1.1
=0.1;
(2)原式=2
+42
-2 2
=5
;2
(3)原式=
+33 3
×33
=
;28 3 3
(4)原式=
+14
+3 3 3
=5+1
=6;
(5)原式=5-7+2
=0;
(6)原式=(145+24)(145-24)
=169×121
=
×169 121
=13×11
=143.