问题
解答题
计算 (1)(-2)3+
(2)
(3)-32003-(
(4)(-
(5)2
(6)(
|
答案
(1)原式=-8+
-1 2 1 2
=-8;
(2)原式=
÷27
-3
÷12 3
=3-2
=1;
(3)原式=(-3×
)2002×(-3)+1 3 1 2
=-3+1 2
=-2
;1 2
(4)原式=(-
)5×27×37×(1 3
)61 2
=(-
×3)5×32×(2×1 3
)6×21 2
=-1×9×1×2
=18;
(5)原式=2
×3
-218
×23 50
=6
-206 6
=-14
;6
(6)原式=4
-3
-2
+23 2
=3
+3
.2