номер 1.82

Identifying textbook content

I need to figure out exercise number 1.82 from an image that seems cropped on the left, which likely hides task numbers. It appears to be from a Russian math textbook, probably for fifth grade, with a heading related to segments and polygons. The first chapter might cover natural numbers. It's possible the visible content includes a math problem or measurement task related to exercise 1.82. I need to reference my memory for any details about Russian textbooks to confirm the source.Identifying textbook themes and exercises

In the Vilenkin textbook, I see themes like "Natural Numbers," "Segment. Length of Segment. Triangle," and more. Exercise 1.82 seems to be on page 21, possibly connected to these topics. I need to reconstruct what exercise 1.82 looks like based on the visible items and numbering sequence, especially since the image I have has a clear page number. The content could be from a 5th-grade math textbook, potentially by Мерзляк et al., focusing on natural numbers and geometric figures. I’ll try to recall more details for accuracy.Analyzing cropped expressions

I need to figure out if the fourth expression is cropped correctly. Maybe the image only shows part of it, like "4) 21 · 106 − 10..." and it's cut off. The task appears to be asking me to compute something with four subproblems, and I see the right edge is cropped. As I look more closely, it seems like the expression might continue off-frame. I need to see the whole task to understand what the user is asking.