00:20 – Challenging Word Problems #1
01:50 – Challenging Word Problems #2
03:25 – Challenging Word Problems #3
06:02 – Challenging Word Problems #4
07:38 – Challenging Word Problems #5
09:00 – Challenging Word Problems #6
09:33 – Challenging Word Problems #7
12:13 – Challenging Word Problems #8
14:32 – Challenging Word Problems #9
15:16 – Challenging Word Problems #10