Xiao Ming is only seven years old, Now I give him some numbers, and ask him what is the second. largest sum if he can choose a part of them. For example, if I give him 1 、 2 、 3 ， then he should tell. me 5 as 6 is the largest and 5 is the second. I think it is too hard for him, isn ’ t it?
Xiao Ming is only seven years old, Now I give him some numbers, and ask him what is the second largest sum if he can choose a part of them. For example, if I give him 1 、 2 、 3 ， then he should tell me 5 as 6 is the largest and 5 is the second. I think it is too hard for him, isn ’ t it?
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