Thank you for your answer, The book is too heavy for the table, it has nearly 10000 pages (17MB).
I have attached an example of a page from the book and also a short example in English to understand the principle. For each paragraph I need another identical paragraph with addition or subtraction (+ or -). Right now I have to copy the paragraph and paste it and then change the + or - sign. That's why I thought that if I knew how to select the paragraph I could add a copy paste command to the macro. like below:

Sub PLUSMINUS()
'
' PLUSMINUS Macro
'
'
Selection.Copy
Selection.TypeParagraph
Selection.Paste
End Sub

Attached Images

	SELECT EX1.jpg (11.8 KB, 15 views)
	SELECT EX2.jpg (288.9 KB, 16 views)