Problem 1506
Observe the first four sets of numbers to determine the missing value in the fifth set.
{-21, 10, 12, 3}
{12, 18, 7, 6}
{-16, 34, 19, 8}
{153, 68, 17, 9}
{?, -60, -11, -6}
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Observe the first four sets of numbers to determine the missing value in the fifth set.
{-21, 10, 12, 3}
{12, 18, 7, 6}
{-16, 34, 19, 8}
{153, 68, 17, 9}
{?, -60, -11, -6}
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