Weekly problems for middle school students ready for a challenge. These puzzles enhance logical thinking and make math exciting and rewarding.
Observe the pairs of numbers. Based on the relationship of the first 7 pairs of numbers, what value should replace the question mark in the 8th pair?
(1, 9)
(3, 13)
(8, 23)
(11, 29)
(15, 37)
(25, 57)
(49,105)
(91,189)
(100, ?)
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