No offense intended, but needing to ask that question less than a week before test-day strongly indicates that you are not properly prepared to take it and achieve a competitive score.
LSAC specifically states that there is no scratch paper allowed. I can’t fathom that someone who has actually spent time with the materials would not know this. It’s not rude, it’s honest.
It indicates that you haven’t even read/are not familiar with the basic rules that govern taking an officially administered LSAT. Even the worst off-the-shelf LSAT prep books state the rule early on in the text. Prep courses and tutors also tell you about the restriction.
The official information/rules and regulations on the LSAC website: http://www.lsac.org also state it clearly.
Not knowing that you are not allowed to use and are not given scratch paper when taking the scored sections of the test demonstrates that you haven’t read/learned the preliminary basics about taking the test.
I’m not trying to be rude or hostile. This is an introduction to taking the LSAT 101 matter. Also, FYI, you are not allowed to bring into the test center or use mechanical pencils or pens other than a highlighter and standard pencils.