同学你好~本题答案如下所示:
(1)3480+516600=520080
(2)196000+4000-13000=187000
(3)20000
(4)133000+162400+82800=378200
(5)520080+187000+20000+378200=1105280
(6)640800-2700=638100
(7)22400
(8)638100-22400=615700
(9)1105280+615700=1720980
(10)206000
(11)24000+25080=49080
(12)200000
(13)206000+49080+200000=455080
(14)240000-200000=40000
(15)40000
(16)455080+40000=495080
(17)1154000
(18)53300
(19)38600-20000=18600
(20)1154000+53300+18600=1225900
(21)495080+1225900=1720980
祝学习进步,生活愉快,期待五星好评~