一、计算题:1。口算:412= 6003= 323= 416= 240= 60+8= 1505= 2408= 254= 6307= 3023= 3006= 484= 175= 165= 450= 262= 262= 484= 57+8=9+63= 5+47= 82+9= 8+56=2竖式计算。(带*的要验算)4207= 2354= 6058= 8502= 9026= * 9189= 4473= * 8174=3脱式计算35+955 686356 (345+15)9= = = = =79876 62465 819(33)= = = = =