00:10 – Challenging Word Problems #1
03:21 – Challenging Word Problems #2
07:27 – Challenging Word Problems #3
10:45 – Challenging Word Problems #4
12:55 – Challenging Word Problems #5
17:32 – Challenging Word Problems #6
18:40 – Challenging Word Problems #7
23:27 – Challenging Word Problems #8
26:13 – Challenging Word Problems #9
27:32 – Challenging Word Problems #10

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