计算(1)(-2)3+12(2004-3)0-|-12|(2)27-123(3)-32003-(13)2002+12(4)(-13)5×67×(12)6(5)23(18-250)(6)(48-418)

题目简介

计算(1)(-2)3+12(2004-3)0-|-12|(2)27-123(3)-32003-(13)2002+12(4)(-13)5×67×(12)6(5)23(18-250)(6)(48-418)

题目详情

计算
(1)(-2)3+
1
2
(2004-
3
0-|-
1
2
|
(2)
27
-
12
3

(3)-32003-(
1
3
2002+
1
2

(4)(-
1
3
5×67×(
1
2
6
(5)2
3
(
18
-2
50
)

(6)(
48
-4
1
8
)-(3
1
3
-4
0.5
)
题型:解答题难度:中档来源:不详

答案

(1)原式=-8+class="stub"1
2
-class="stub"1
2

=-8;

(2)原式=
27
÷
3
-
12
÷
3

=3-2
=1;

(3)原式=(-3×class="stub"1
3
)2002×(-3)+class="stub"1
2

=-3+class="stub"1
2

=-2class="stub"1
2


(4)原式=(-class="stub"1
3
)5×27×37×(class="stub"1
2
)6
=(-class="stub"1
3
×3)5×32×(2×class="stub"1
2
)6×2
=-1×9×1×2
=18;

(5)原式=2
3
×
18
-2
3
×2
50

=6
6
-20
6

=-14
6


(6)原式=4
3
-
2
-
3
+2
2

=3
3
+
2

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