题目内容
计算
(1)
(2)
(1)

(2)

(1)6;(2)

试题分析:(1)有理数的混合运算的顺序:先算乘方,再算乘除,最后算加减,同级运算按从左向右的顺序依次计算;有括号的先算括号里的.同时注意运算过程中可以运用运算律计算的要运用运算律简化计算;
(2)先根据积的乘方公式化简,再根据单项式除单项式、单项式乘单项式法则化简即可.
(1)原式=


(2)原式=



点评:计算题是中考必考题,一般难度不大,要特别慎重,尽量不在计算上失分.

练习册系列答案
相关题目