问题
解答题
(1)
(2)
(3)(
(4)(
|
答案
(1)
×4
-29
=6-2
=4;
(2)
+2 8 2
=1+2
=3;
(3)(
-2)(2+3
)3
=3-4
=-1;
(4)(
-2)25
=5-4
+45
=9-4
.5
(1)
(2)
(3)(
(4)(
|
(1)
×4
-29
=6-2
=4;
(2)
+2 8 2
=1+2
=3;
(3)(
-2)(2+3
)3
=3-4
=-1;
(4)(
-2)25
=5-4
+45
=9-4
.5