下面各题怎样简便就怎样算.(1)3.7×99+3.7 (2)144÷24+104×20 (3)5.93+0.64+0.07+0.36(4)++6.875+ (5)÷+× (6)1.5÷0.25×4
55×(++++)
++++++++
2.009×43+20.09×2.9+200.9×0.28
(2.5×)÷(×1.8)-0.75÷
20142014×20142013-20142015×20142012