第一章整式的乘除周周测2一、填空题:1.221()3abc=________,23()naa=_________.2.5237()()pqpq=_________,23()4nnnnab.3.若4312882n,则n=__________.二、选择题:4.若a为有理数,则32()a的值为()A.有理数B.正数C.零或负数D.正数或零5.若33()0ab,则a与b的关系是()A.异号B.同号C.都不为零D.关系不确定6.计算82332()()[()]ppp的结果是()A.-20pB.20pC.-18pD.18p三、解答题:7.计算(1)4224223322()()()()()()xxxxxxxx;(2)3123121()(4)4nmnabab;(3)2112168(4)8mmmm(m为正整数).8.已知105,106ab,求(1)231010ab的值;(2)2310ab的值第一章整式的乘除周周测2参考答案与解析1.24219abc,23na2.2923(),4pqab3.374.A、D5.A、C6.D7.(1)0(2)12mab(3)08.(1)2323231010(10)(10)56241abab(2)23232323101010(10)(10)565400ababab