8.33.3 Can you answer these questions?

8.33.3.1 Remove the heading of the page where the figure is?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=645257

I need to insert a very large figure which will occupy the whole page, so I need to remove the heading of the page where the figure is. I do this with code: 
\documentclass[a4paper,12pt,twoside]{book} 
\... 
[graphics] [header-footer]
 

asked by Y. zeng https://tex.stackexchange.com/landing/r/digest?cta=user&id=245010 Score of 1

answered by deniz https://tex.stackexchange.com/landing/r/digest?cta=user&id=270951 Score of 0

8.33.3.2 Division not long division

https://tex.stackexchange.com/landing/r/digest?cta=question&id=644933

I would like to set out my division sums as in section 2 in this code. How can I do this with random numbers, and not so messy code, or even without using tables at all? 
\documentclass{article} 
... 
[math-mode]
 

asked by Paul A https://tex.stackexchange.com/landing/r/digest?cta=user&id=267103 Score of 1

answered by DJP https://tex.stackexchange.com/landing/r/digest?cta=user&id=6513 Score of 0

8.33.3.3 \hypertarget changes pdfview locally

https://tex.stackexchange.com/landing/r/digest?cta=question&id=645036

How can I change the behavior of PDF view for only one \hypertarget, but others should stay unchanged. 
I'm trying to make a link to the text, but I want exactly this link not to change X position of ... 
[hyperref]
 

asked by antshar https://tex.stackexchange.com/landing/r/digest?cta=user&id=213149 Score of 1