脱式 30 题12800 100789 (947599 )7 64 36(1527623) = = = = = = =(932521)9 723(521504)25 (3921)(3966)= = = = = = = =5071363 498 38412331 37(7+6) 30 = = = = = = =脱式 30 题216(17-8)3 28(5+9632) 81(72-54 )9 = = = = = = =571256035 8486401612 960(15003245) = = = = = = =192(5438)6 (12+24+80)50 32(25+125)= = = = = = =脱式 30 题3123181233+85123 25(24+16) 17899+178 = = = = = = =(140-70)54 63+84242 4907+245= = = = = = =45+24012 157+857 (46-20 )30-90= = = = = = =脱式 30 题425274 (404)25 240080142 = = = = = = =108(8336060 ) (42048)(375345 ) 290(343+99 ) = = = = = = =