问题 解答题 直接写出得数.3-214=1÷49=321-178+257=0.875÷38=409×10-409=2.25+714=(13+49)×18=327+2.7+257+1.3= 答案 3-214=34,1÷49=94,321-178+257=400,0.875÷38=73,409×10-409=3681,2.25+714=9.5,(13+49)×18=14,327+2.7+257+1.3=10.