第403章 珠心算!惊诧郑玄,刘郡守果然…(2 / 2)

郑玄捏着颌下一缕胡须,轻声道:“老朽方才出了一些算术的考题,给本书院的学生,但可惜,没人能够精准作答,伯济若敢兴趣,可以试试。”

郭淮当即欠身拱手:“固所愿也,不敢请尔。”

旋即。

众人分坐。

郑玄吩咐管宁取来考题,交给郭淮。

郭淮倒也极其干脆,提起毛笔,展开竹简,双目扫过上面考题,左手已然开始掐起法诀,口中不停地轻声呢喃。

郑玄瞧见这架势,顿时惊得是目瞪口呆,若非知道郭淮是在做算术题,否则真要把他当作道家做法事的道长了。

即便是一旁的管宁见状,也不由地怔在原地,《九章算经》乃是汉朝算术的基础,可从来没有一篇教过人靠做法算术啊!

神特么......

刘铄当真是在教算术,而不是做法?

正当郑玄、管宁疑惑不解时,郭淮已然提笔写下答案,整个过程居然不到一刻钟,甚至连提前备好的算筹,都没有用上。

“恩师、郑老。”

郭淮置笔一旁,长出口气:“弟子核算完毕。”

郑玄捏着颌下胡须,试探性询问道:“阁下难道不需要检验一番?”

郭淮笑了笑:“郑老放心,已经检验过了,应该没有问题。”

刘铄立刻打个眼色,轻声道:“还不赶紧给郑老递上去?”

“哦。”

郭淮这才反应过来,急忙把竹简递上去:“还请郑老过目。”

郑玄接过竹简,眼珠子上下一翻滚,顿时愣在原地:“这......这怎么可能?”

管宁更是急切询问:“师兄,结果如何?”

郑玄扭头瞥向管宁,点了点头:“正确。”

嘶—!

管宁惊诧不已,扭头瞥向郭淮,心中巨震。

要知道,即便是书院的学生,面对这份考题时,依旧要花费至少半天的功夫,才能核算出结果,而且正确率极低。

可是......

郭淮则是不然,尚且不到一刻钟,便核算完毕,而且检验过一次,结果正确。

这速度与准确率,简直吊打书院的学生,甚至连管宁本人,也是自愧不如。

“你是如何办到的?”

管宁深吸口气,试探性问道。

“恩师。”

郭淮瞥向刘铄,见其颔首点头,便大方承认道:“这是恩师传授的珠心算,只要掌握了算术的规律,便可以轻易做到。”

“珠心算?”

这一次,上首的郑玄彻底愣住了。

他即便是活了一个甲子,也从来没有听过这种算法。

“没错,正是珠心算。”

郭淮肯定地点了点头,轻声道:“现在,我东郡、陈留的主计,哪怕是各县的主计,全都要学会珠心算,否则不能上岗,会耽误全年的数据统计。”

“恩师从来没有藏私,只要有人肯学,就一定会传授,甚至连素有王佐之才美誉的荀彧,也跟恩师学过珠心算。”

“实不相瞒。”

郭淮昂首言道:“郑老,您的题目出的有些简单了,仅仅局限在仓库的进出,乃是最简单的加减运算,即便有更难的乘除运算,在下亦能手到擒来。”

嘶—!

郑玄惊得眼珠子都快瞪出来了。

他自以为自己精通算术,培养出来的弟子,至少都是当主计的材料,甚至某些人可以在军中当军师,负责粮草、军械等的统计与分发等。

但是......

与刘铄的弟子相比,自己引以为傲的弟子,彷佛在一刹那间,便被秒杀成了渣渣,完全不可与郭淮相提并论。

没有对比,就没有伤害!

郑玄终于明白,为何刘铄年纪轻轻,便可为人师,他是真的很有本事,至少在算术方面,郑玄自愧不如。

“刘郡守果然奇才也。”.

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