AMC数学竞赛8专为8年级及以下的初中学生设计，但近年来的数据显示，越来越多小学4-6年级的考生加入到AMC 8级别的考试行列中，而当这些学生能在成绩中取得“A”类标签，则是对孩子数学天赋的优势证明，不管是对美高申请还是今后在数学领域的发展都极其有利！那么接下来跟随小编来看一下AMC 8的官方真题以及官方解答吧：

Problem 5

The number  is a two-digit number.

• When  is divided by , the remainder is .

• When  is divided by , the remainder is .

What is the remainder when  is divided by ?

Solution

From the second bullet point, we know that the second digit must be . Because there is a remainder of  when it is divided by , the multiple of  must end in a . We now look for this one:

The number  satisfies both conditions. We subtract the biggest multiple of  less than  to get the remainder. Thus, .

Problem 6

The following bar graph represents the length (in letters) of the names of 19 people. What is the median length of these names?

Solution

We first notice that the median name will be the  name. The  name is .

以上就是小编对AMC竞赛官方真题以及解析的介绍，希望对你有所帮助，更多AMC真题下载请持续关注AMC数学竞赛网！