2.3*99+2.3
=2.3*100
=230
28.125-1/8-3.7
=28-3.7
=24.3
(1/2-1/3+6/6)
=(3/6-2/6+6/6)
=(7/6)*18
=21
16*25*125
=4*25*4*125
=500*100=50000
101*93-93
=100*93
=9300要简算这就是简算………