小朋友排成一队，从前面数小力排在第10个，从后面数小云排在第8个，小力和小云之间有2个小朋友，这对小朋友有（ ）人或（ ）人。这是一年级暑假作业中的题目，答案不就是20个人吗？为什么有（）人或（）人，这什么意思啊？ 求解答……

解答如下：小朋友排成一队，从前面数小力排在第10个，从后面数小云排在第8个，小力和小云之间有2个小朋友，这对小朋友有（ 20）人或（ 14）人。

画个图就容易明白了，有两种情况，所以上面就要求填两种答案了。图中箭头表示数的方向：

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