What I did

Here's how I thought about my estimation challenge.

What I do to estimate it and to have the exact number:

- first, I tried to count them but it was impossible as I counted many time the same log

- so I decided to split the picture into 8 parts of the same size:

It was better but sometimes I counted the same log

-To help me, I drew a dot at the middle of each log. And I counted how many logs in each part:

Result:

estimation: 8 groups with 18 dots approximately in each group so  8*18= 144

exact number: 17+14+17+17+18+20+21+19= 143

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