About kids problem solving results of 10,000
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06:54
12:52
01:19
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01:23
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10:24
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08:31
12:55
04:19
10:50
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03:00
07:12
00:29
14:02
07:57
03:18
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19:27
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08:35
03:31
14:58
17:30
19:29
11:03
02:27
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