难住心算家哈特是著名的心算家,最擅长的是在别人说完问题时就立刻给出答案,从未失误过。久而久之,谁能难住哈特,便成了人们最感兴趣的话题。没想到,这个人很快就出现了。这天,哈特照例登台表演心算能力,不断有人上台为他出题,他都轻松地逐一解答。后来一位女士开始出题:“一辆公共汽车上有45人,第一站下了8人,上了10人。” Hard to remember that Hart is a famous mental arithmetician. What he is best at is to immediately give an answer when someone finishes the question. He has never made a mistake. Over time, who can hardly live Hart has become the topic of most interest to people. Unexpectedly, this person soon appeared. On this day, Hart went on stage to perform mental arithmetic as usual. He was constantly on stage to ask questions for him, and he answered them easily. Later, a lady began to issue: “There were 45 people on a bus. There were 8 people on the first stop and 10 people on the first stop.”