The six questions on page 18 are finding patterns (), 2.6, 2.8 (), 3.2, (). As can be seen from the title, 2.8-2.6=0.2, 0.2+3.0=3.2, so the difference between each number is 0.2, and the answers are 2.4, 3.0 and 3.4.

Now there are two versions of mathematics: People's Education Edition and Beijing Normal University Edition. People's Education Press is a book published by People's Education Press. Beijing Normal University Edition is a book published by Beijing Normal University Press.