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4 votes
66 73 13 21 52 ____ 10 20

2 Answers

6 votes
Perhaps 66+73+13+21=52+x+10+20
66+73+13+21=173
x=173-52-10-20
x=91
User BoD
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4 votes
Answer 61 73-66= 7 21-13 = 8 ?? -52= 9 20-10 = 10 ??=61
User Nosferat
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