Current location - Training Enrollment Network - Mathematics courses - Ahem, the math problems of primary school students are so abnormal now that the whole thing is meaningless to me. Please solve the prawns.
Ahem, the math problems of primary school students are so abnormal now that the whole thing is meaningless to me. Please solve the prawns.
1 to 9 pages, 9 numbers
10 to 99 pages, with 90 numbers.
Now there are 99 numbers, 306-99=207, and 207 numbers have three-digit page numbers, so 207÷3=69, which means there are 69 page numbers, that is, from 100 to 168.