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1、100道简便运算带答案简单例题1、343.535-3.534.34=343.51.01-3.5341.01=02、8+89+899+8999+89999=9+90+900+9000+90000-5=99999-5=999943、0.672.1+0.01821+8.50.79=0.672.1+0.182.1+8.50.79=（0.67+0.18）2.1+8.50.79=0.852.1+0.857.9=0.85（2.1+7.9）=0.8510=8.54、22222.29.99999=22222.2（10-0.00001）=222222-0.222222=222221.7777785、1997199
2、61996-199619971997=1997199610001-1996199710001=06、0.02+0.04+0.06+0.08+19.94+19.96+19.98=（0.02+19.98）9992=10999=99907、9999977778+3333366666=9999977778+9999922222=99999（77778+22222）=99999100000=99999000008、（4又5/6-3又3/4）/（3/14+2/7）=13/121/2=13/6=2又1/69、（4.8/1又4/5+3又1/2+7又1/3）*4/9=（2又2/3+7又1/3+3.5）*4/9=
3、（10+3.5）*4/9=13.5*4/9=610、17.2/【（3又2/5-1.25）*2/3】=17.2/【2.15*2/3】=17.243/3=1.211、5*5又1/5=5*5+5*1/5=25+1=2612、（5又2/5-1.8）/（1.15+13/20）*1又2/3=3.6/1.8*5/3=3.6/3=1.213、3又5/8*5又1/5+5又1/5*6又3/8=5.2*(3又5/8+6又3/8）=5.2*10=5214、3/4-7/8/(5/6+4/5)*28=3/4-7/849/30*28=3/4-15/28*28=3/4*28-15/28*28=21-15=615、(1.25*
4、4/5-0.76)/(1又3/8+1又1/40）=(1-0.76)/2.4=0.24/2.4=0.116、(0.2+1/3)*4.5/(8又1/20-6.45）=8/15*4.5/1.6=2.4/1.6=1.517、8.16-1.26/0.3*1.5=8.16-4.2*1.5=8.16-6.3=1.8618、8.4*(1.2+3又1/3）/3.4-1/2=8.4*68/16/3.4-1/2=8.4*5/4-1/2=8.4*3/4=6.319、19.38-4又7/8-5又1/8=1.938-(4又7/8+5又1/8）=19.38-10=9.3820、13又7/13-（6又3/5+3又7/13）=
5、13又7/13-3又7/13-6又3/5=10-6又3/5=3.421、1又3/4+2又3/14-（2又3/14-1.875）/2又1/12=1又3/4-15/8*12/25=1又3/4-9/10=0.8522、（9.4-8又2/5）/（1.1+1/15）*1又7/18=1/7/6*25/18=1175/108=108/17523、103.14-6.863.14 =(10-6.86)3.14 =3.143.14 =124、37.680.254 =37.68(0.254) =37.681 =37.6825、3.75(2.751.3) =3.752.751.3 =11.3 =2.326、37.56
6、(187.56) =37.567.5618 =3018 =12 0.7714 =0.7772 =0.112 =0.055 4.59.8=4.5(100.2) =4.5104.50.2 =450.9 =44.1 0.70.125=(0.78)(0.1258) =0.561 =0.56 0.70.25=(0.74)(0.254) =2.81 =2.827、2.53.212.5 =(2.50.4)(812.5) =1100 =10028、12.59.60.25=(12.50.8)3(40.25) =1031 =3029、3.75(2.81.25) =3.751.252.8=52.8 =2.230、3
7、7.650.40.25 3.12580.125 37.654.753.25 256.412.5 =2540.2812.5 3.60.25 =(40.4)0.2531、56+31+24=(56+24)+31=80+31=11132、615+475+125 =615+(475+125)=615+600=12153、125*64 =125*8*8=1000*8=8000/33、25X22/37+15/37X27=(5X22+3X27)*(5/37)=(110+81)*(5/37)=(191)*(5/37)=9534、5/3774X8/25+13X16/25=(74+13X2)*(8/25)=(74+26)*(8/25)=(100)*(8/25)=3235、(15又19/20)X(1/16)=(16-1/20)X(1/16)=1-1/320=319/32036、18/(7/9)+0.65X(8/13)-2/7X18+(5/13)X0.65=18*9/7-2X18/7+0.65X8/13+5X0.65/13=(9-2)X18/7+(8+5)X0.65/13=18+0.65=18.655/1699+5/16=5/16*(99+1)=5/16*100=5/4*25=125/4=31.25
