計(jì)算：（每小題6分，共24分）

(1)   

(2)   

(3)   

(4)   

 

 

（1）

（2）-16

（3）-49

（4）-19

解析:

(1) 解：原式····································································· 1分

································································ 2分

··········································································· 4分

·················································································· 6分

(2) 解：原式························································· 1分

······························································ 4分

·········································································· 5分

················································································ 6分

(3) 解：原式·························································· 3分

······································································ 4分

················································································ 6分

(4) 解：原式···················································· 2分

······························································ 3分

····································································· 4分

··········································································· 5分

··············································································· 6分

 

練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目：初中數(shù)學(xué) 來(lái)源： 題型：

計(jì)算：（每小題3分，共6分）
（1）(
6
-
2
)÷
2
；
（2）(
2
+
3
)2-
3
(
1
3
-
8
)．

查看答案和解析>>

科目：初中數(shù)學(xué) 來(lái)源： 題型：

計(jì)算：（每小題4分，共16分）

（1）         （2）              

（3）             （4）

 

查看答案和解析>>

科目：初中數(shù)學(xué) 來(lái)源：2010年上海市七年級(jí)數(shù)學(xué)上冊(cè)期末考試數(shù)學(xué)卷 題型：選擇題

計(jì)算：（每小題6分，共12分）

（1）；    （2）．

 

 

 

 

查看答案和解析>>

科目：初中數(shù)學(xué) 來(lái)源：2013屆河南省扶溝縣初一下學(xué)期第十章數(shù)據(jù)的收集，整理和描述檢測(cè)題 題型：解答題

.計(jì)算：（每小題5分，共10分）

（1）

（2）

 

 

查看答案和解析>>

同步練習(xí)冊(cè)答案