问题
解答题
计算:(1)
(2)
|
答案
(1)
×30 3 2
÷22 2 3 2 1 2
=
×30
÷6 10
=3
;2
(2)
-18
-2 2
+(8 2
-1)05
=3
-2
-2
+12
=
+1.2
计算:(1)
(2)
|
(1)
×30 3 2
÷22 2 3 2 1 2
=
×30
÷6 10
=3
;2
(2)
-18
-2 2
+(8 2
-1)05
=3
-2
-2
+12
=
+1.2