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> 计算或化简:(1)2×32;(2)(2-1)2;(3)5+15-45;(4)(212-313)×6;(5)3(3-π)0-20-155+(-1)2013;(6)(-3)0-27+|1-2|+13+2;
计算或化简:(1)2×32;(2)(2-1)2;(3)5+15-45;(4)(212-313)×6;(5)3(3-π)0-20-155+(-1)2013;(6)(-3)0-27+|1-2|+13+2;
题目简介
计算或化简:(1)2×32;(2)(2-1)2;(3)5+15-45;(4)(212-313)×6;(5)3(3-π)0-20-155+(-1)2013;(6)(-3)0-27+|1-2|+13+2;
题目详情
计算或化简:
(1)
2
×
32
;
(2)
(
2
-1
)
2
;
(3)
5
+
1
5
-
4
5
;
(4)
(2
12
-3
1
3
)×
6
;
(5)3(
3
-π)
0
-
20
-
15
5
+(-1)
2013
;
(6)(-3)
0
-
27
+
|1-
2
|
+
1
3
+
2
;
(7)
48
÷
3
-
1
2
×
12
+
24
;
(8)
2
b
a
b
5
•(-
3
2
a
3
b
)÷3
b
a
.
题型:解答题
难度:中档
来源:不详
答案
(1)原式=
2
×4
2
=8;
(2)原式=2+1-2
2
=3-2
2
;
(3)原式=
5
+
5
5
-
2
5
5
=
4
5
5
;
(4)原式=(4
3
-
3
)×
6
=3
3
×
6
=9
2
;
(5)原式=3-(2-
3
)-1=
3
;
(6)原式=1-3
3
+
2
-1+
3
-
2
=-2
3
;
(7)原式=4-
6
+2
6
=4+
6
;
(8)原式=2b
ab
×(-
class="stub"3a
2
ab
)×
ab
3b
=-a2b
ab
.
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题目简介
计算或化简:(1)2×32;(2)(2-1)2;(3)5+15-45;(4)(212-313)×6;(5)3(3-π)0-20-155+(-1)2013;(6)(-3)0-27+|1-2|+13+2;
题目详情
(1)
(2)(
(3)
(4)(2
(5)3(
(6)(-3)0-
(7)
(8)
答案
(2)原式=2+1-2
(3)原式=
(4)原式=(4
(5)原式=3-(2-
(6)原式=1-3
(7)原式=4-
(8)原式=2b