跪求数学速算法

10972/1.095
=(10950+22)/1.095
=1000+22/1.095
=1000+2*(10/1.095+1/1.095)
(最后只要算1/1.095,其余的是加法.结果好像得近似一下)
368/1.279
=(255800+112200)/1279
=200+1122/12.79
=200+(1100+22)/12.79
=200+1100/12.79+2*11/12.79
(最后的只要算11/12.79,其余的都是加法了.结果好像得近似一下)
24607*17
=24607*(10+7)
=24607*10+24607*7
=246040+172249
=418319