问题补充：
100道小数四则混合简便运算题,100道分数加减法混合运算题,如果有少部分题也可以告诉我,
答案：
2/1*2=1 3/1*3=1 3/2*3=2 3/1*6=2
4/3*8=6 5/3*20=12 7/3*14=6 8/7*40=35
4/3*16=12 9/5*27=15 2/1*30=15 12/7*24=14
30/1*30=1 51/9*102=18 19/9*76=36 4/9*8=18
5/8*90=144 99/98*99=98 3/14*6=28 7/1*28=4
10/1*90=9 5/3*105=63 19/7*38=14 5/1*25=5
8/19*16=38 61/60*122=120 7/2*28=8 6/1*48=8
9/7*18=14 25/7*100=28 9/5*81=45 8/9*16=18
11/14-3/14+1/8
=4.05-(2.8+0.7)
=0.55 4.05-2.8-0.7
=4.05-(2.8+0.7)
=0.55 212+198
=(200+12)+(100+98)
=200+12+100+98
=12+98+100+200
=110+100+200
=410 13.75-(3.75+6.48)
=13.75-3.75-6.48
=10-6.48
=3.52（0.75*42.7+57.3-0.573*25）/3*7972
=(0.75*42.7+57.3*1-57.3*0.25)/3*7972
=[0.75*42.7+57.3(1-0.25)]/3*7972
=[0.75*42.7+57.3*0.75]/3*7972
=[(42.7+57.3)*0.75]/3*7972
=75/3*7972
=25*7972
=199300
3.45*0.6*2.8=3.45×2.8×0.6=5.796
4.02＋5.4＋0.98
=4.02+0.98+5.4
=5+5.4
=10.45.17－1.8－3.2
=5.17-（1.8+3.2）
=5.17-5
=0.1713.75－(3.75＋6.48)
=13.75-3.75-6.48
=3.5233*145+33*55
=(145+55)*33
=200*33
=6600369*136-36*369
=100*369
=36900
193*51+193*49=100*193=1930025*32=25*4*8=80079*16+79*78+79*6=(16+78+6)*79=100*79=7900 25*32=25*4*8=800193*51+193*49=100*193=19300369*136-36*369
=100*369
=36900
33*145+33*55
=(145+55)*33
=200*33
=6600/ =除号 *=乘号
