Question 2
From a book with pages numbered 1 to 300, all pages whose numbers contain the digit 2 are removed. How many pages remain?
Use the source counting model: remove individual numbered pages; do not additionally remove the page printed on the reverse side of a physical sheet.

Choose one option.
Use the source counting model: remove individual numbered pages; do not additionally remove the page printed on the reverse side of a physical sheet.

Choose one option.