Second Number

Middle School Madness - November 11, 2019

Second Number Image

Observe the first three sets of numbers to determine the missing value in the fourth set.
Are you sure you know the value?

{-5, 23, 12, 16}
{1, 39, -14, 52}
{17, 47, 42, -12}
{25, ?, 11, 31}


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NOTE: Anyone can answer Middle School Madness questions, but only participants 15 years of age or younger will be awarded points and displayed in the rankings.

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