As promised, here are the answers to Friday’s PuzzleNation live game, a.k.a. the Progressions challenge! Thank you to everyone who gave it a shot. I look forward to doing another live puzzle game soon!

(And for anyone who didn’t get a chance to play, you can check out the original puzzles on our Facebook and Twitter accounts!)

FACEBOOK

1.) 18  25  28  35  ______  45  48  55  58

Answer: 38 (+7 +3 +7 +3 +7 +3 +7 +3)

2.) 92  91  89  85  ______  76  74  70  62

Answer: 77 (-1 -2 -4 -8 -1 -2 -4 -8)

3.) 64  71  78  83  ______  91  94  95  96

Answer: 88 (+7 +7 +5 +5 +3 +3 +1 +1)

4.) 81  162  54  108  ______  72  24  48  16

Answer: 36 (x2 /3 x2 /3 x2 /3 x2 /3)

5.) 22  23  28  33  ______  35  40  45  46

Answer: 34 (+1 +5 +5 +1 +1 +5 +5 +1)

6.) 242  121  123  41  ______  11  15  3  8

Answer: 44 (/2 +2 /3 +3 /4 +4 /5 +5)

7.) 15  9  18  14  ______  22  44  40  80

Answer: 28 (-6 x2 -4 x2 -6 x2 -4 x2)

TWITTER

1.) 39  43  49  52  ______  63  69  72  79

Answer: 59 (+4 +6 +3 +7 +4 +6 +3 +7)

2.) 9  17  25  23  ______  29  37  35  33

Answer: 21 (+8 +8 -2 -2 +8 +8 -2 -2)

3.) 108  104  52  48  ______  20  10  6  3

Answer: 24 (-4 /2 -4 /2 -4 /2 -4 /2)

4.) 58  49  52  44  ______  40  43  35  40

Answer: 49 (-9 +3 -8 +5 -9 +3 -8 +5)

5.) 31  22  66  57  ______  162  486  477  1431

Answer: 171 (-9 x3 -9 x3 -9 x3 -9 x3)

6.) 46  47  49  46  ______  47  53  46  38

Answer: 42 (+1 +2 -3 -4 +5 +6 -7 -8)

7.) 4  16  18  6  ______  28  30  10  11

Answer: 7 (x4 +2 /3 +1 x4 +2 /3 +1)

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