问题
解答题
(1)
(2)(5
(3)
(4)
|
答案
(1)原式=4
-2
+5 2 2 3 2 2
=4
-2 2
=3
;2
(2)原式=(20
-183
+43
)÷15 3
=(2
+43
)÷15 3
=2+4
;5
(3)原式=
+1+33
-13
=4
;3
(4)原式=
-(18-12)4+2 3 2
=2+
-63
=-4+
.3
(1)
(2)(5
(3)
(4)
|
(1)原式=4
-2
+5 2 2 3 2 2
=4
-2 2
=3
;2
(2)原式=(20
-183
+43
)÷15 3
=(2
+43
)÷15 3
=2+4
;5
(3)原式=
+1+33
-13
=4
;3
(4)原式=
-(18-12)4+2 3 2
=2+
-63
=-4+
.3