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The task for first-graders (2 photos)

Today, with his son doing homework. I read the task, I needed to restart the brain. Can someone explain to thread like this?



and that he textbook



Source:
Pictures
Objectives for the Pioneers (2 photos)
Objectives for the first graders!
Photo fun week (16 - 22 September 2013)
Wisdom in Everyday Life: Unexpected Lessons and Treasures
Office organizer with his own hands
20 countries, the law about sex
Euro 2012
Hungry Bear
Celestials
Kryshesnosyaschy tuning - kilowatts hammering in his ears!
...
Objectives for the Pioneers (2 photos)
...
Objectives for the first graders!
...
Photo fun week (16 - 22 September 2013)
...
Wisdom in Everyday Life: Unexpected Lessons and Treasures
...
Office organizer with his own hands
...
20 countries, the law about sex
...
Euro 2012
...
Hungry Bear
...
Celestials
...
Kryshesnosyaschy tuning - kilowatts hammering in his ears!
 A sensational phone from Coco Chanel!  3d Chess (15 photos)