题目
题型:解答题难度:一般来源:不详
(1)(+1
1 |
3 |
2 |
3 |
(2)(
17 |
35 |
4 |
7 |
4 |
5 |
(3)-22-(-3)3×(-1)4
(4)
2 |
3 |
2
|
3 | -3
| ||
(5)-22-(-3)3×(-1)4-(-1)5
(6)
1 |
2 |
2 |
3 |
4 |
5 |
1 |
2 |
1 |
3 |
(7)[(-
3 |
2 |
4 |
3 |
1 |
2 |
(8)(-81)÷2
1 |
4 |
4 |
9 |
(9)3-2×(-5)2
(10)-48×(
1 |
2 |
5 |
8 |
1 |
3 |
11 |
16 |
(11)(-
1 |
3 |
答案
1 |
3 |
2 |
3 |
=-(5
2 |
3 |
1 |
3 |
=-4
1 |
3 |
(2)(
17 |
35 |
4 |
7 |
4 |
5 |
=
17 |
35 |
4 |
7 |
4 |
5 |
=-17+20-28,
=-45+20,
=-25;
(3)-22-(-3)3×(-1)4,
=-4-(-27)×1,
=-4+27,
=23;
(4)
2 |
3 |
2
|
3 | -3
| ||
=
2 |
3 |
3 |
2 |
3 |
2 |
=-1+
3 |
2 |
=
1 |
2 |
(5)-22-(-3)3×(-1)4-(-1)5,
=-4-(-27)×1-(-1),
=4+27+1,
=32;
(6)
1 |
2 |
2 |
3 |
4 |
5 |
1 |
2 |
1 |
3 |
=
1 |
2 |
1 |
2 |
2 |
3 |
1 |
3 |
4 |
5 |
=0-1+
4 |
5 |
=-
1 |
5 |
(7)[(-
3 |
2 |
4 |
3 |
1 |
2 |
=[(-
27 |
8 |
16 |
9 |
=(12-9+27)×(-1),
=30×(-1),
=-30;
(8)(-81)÷2
1 |
4 |
4 |
9 |
=(-81)×
4 |
9 |
4 |
9 |
1 |
16 |
=-81×
4 |
9 |
4 |
9 |
1 |
16 |
=-1;
(9)3-2×(-5)2,
=3-2×25,
=3-50,
=-47;
(10)-48×(
1 |
2 |
5 |
8 |
1 |
3 |
11 |
16 |
=
1 |
2 |
5 |
8 |
1 |
3 |
11 |
16 |
=-24+30-16+33,
=-40+63,
=23;
(11)(-
1 |
3 |
=
1 |
9 |
1 |
4 |
=-96.
核心考点
试题【计算:(1)(+113)+(-523)(2)( 1735-47+45 )×(-35)(3)-22-(-3)3×(-1)4(4)23×(-214)-3-338(5】;主要考察你对有理数的混合运算等知识点的理解。[详细]
举一反三
(1)23-18-(-7)+(-12)
(2)22-5×
1 |
5 |
(1)26-17+(-5)-33
(2)-23÷
4 |
9 |
3 |
2 |
(3)18-6÷(-2)×(-
1 |
3 |
(4)(-3)2×[
2 |
3 |
5 |
9 |
(1)
2 |
3 |
3 |
8 |
1 |
3 |
3 |
4 |
(2)(-1.5)×3×(-
2 |
3 |
1 |
3 |
(1)12-(-18)-(+7)-15
(2)(
3 |
4 |
7 |
12 |
7 |
6 |
(3)-14-
1 |
7 |
(4)x-3(1+2x-x2)+2(3x-2-x2)
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