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}
Are you sure you know the value?
{-5, 23, 12, 16}
{1, 39, -14, 52}
{17, 47, 42, -12}
{25, ?, 11, 31}