问题
解答题
计算: (1)-12010-(1-0.5)÷3×[2-(-3)2]; (2)-(
(3)
(4)
(5)(
|
答案
(1)原式=-1-0.5÷3×(2-9)
=-1-0.5÷3×(-7)
=-1+7 6
=
;1 6
(2)原式=-
+1 4
×(1 2
-2 3
)4 3
=-
+1 4
×(-1 2
)2 3
=-
-1 4 1 3
=-
;1 12
(3)原式=
-1+2
-3
-2
+13
=0;
(4)原式=2+9×(-
)-3-(1 8
-1)3
=2-
-3-9 8
+13
=-
-9 8
;3
(5)原式=
-14 18
+15 18 7 18
=14-15+7 18
=6 18
=
.1 3