题目
题型:解答题难度:一般来源:不详
(1)-7+13+(-6)+20
(2)1+(-2)+|-3|-5
(3)1+(-
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2 |
1 |
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1 |
6 |
(4)3
7 |
12 |
1 |
4 |
7 |
12 |
1 |
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1 |
8 |
答案
=-7-6+13+20
=-13+33
=20;
(2)原式=1-2+3-5
=-3;
(3)原式=1-
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2 |
1 |
3 |
1 |
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=
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6 |
3 |
6 |
2 |
6 |
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=
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(4)原式=3
7 |
12 |
1 |
4 |
7 |
12 |
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4 |
1 |
8 |
=-4
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8 |
=-
33 |
8 |
核心考点
试题【计算:(1)-7+13+(-6)+20(2)1+(-2)+|-3|-5(3)1+(-12)+13+(-16)(4)3712+(-114)+(-3712)+114】;主要考察你对有理数的运算等知识点的理解。[详细]
举一反三
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5 |