1, the meaning of the question is not clear. 4 10 days is less than the total number of days you go around the sun? Who are we forever?

It took me 88 days to make the sun go around?

2、205*4=820

3、? 1) Take the chicken across the river first. 2) Go back and take the cat across the river? 3) Bring chickens back and rice across the river? 4) Go back and take the chicken across the river.

4、4 132,3 142, 1234,32 14, 1306 ...

Step 5 answer

draw