按規(guī)律填數(shù)
124050,144050,________,________,204050;89500000,________,69500000,59500000,________.
164050 184050 79500000 49500000
分析:(1)觀察數(shù)據(jù)的關(guān)系,發(fā)現(xiàn):后面的數(shù)比前面的數(shù)大20000.則應該分別是144050+20000=164050,164050+20000=184050,
(2)觀察數(shù)據(jù)的關(guān)系,發(fā)現(xiàn):后面的數(shù)比前面的數(shù)小10000000.則應該分別是89500000-10000000=79500000,59500000-10000000=49500000.
解答:(1)144050+20000=164050,
164050+20000=184050,
(2)89500000-10000000=79500000,
59500000-10000000=49500000.
故答案為:164050,184050,79500000,49500000.
點評:根據(jù)所給數(shù)據(jù)發(fā)現(xiàn)規(guī)律,再進一步計算.