This is what I've found and referred to in the past. It is from Art Reed, who is kind of a Saxon math expert. As you can see in some cases you may skip Math 87, but never Algebra 1/2 (
http://www.usingsaxon.com/newsletterpage-2012.php)
FAST MATH TRACK: Math 76 - Algebra 1/2 - Algebra 1 - Algebra 2 -
Geometry with Advanced Algebra - Trigonometry and Pre-Calculus(combined make up the Advanced Mathematics book) - Calculus. NOTE: The Saxon Advanced Mathematics textbook was used over a two year period allowing the above underlined two full math credits after completing Saxon Algebra 2. (TOTAL High School Math Credits: 5)
AVERAGE MATH TRACK: Math 76 - Math 87 - Algebra 1/2 - Algebra 1 - Algebra 2 - Geometry with Advanced Algebra - Trigonometry and Pre-Calculus. (TOTAL High School Math Credits: 4)
SLOWER MATH TRACK: Math 76 - Math 87 - Algebra 1/2 - Algebra 1 - Introduction to Algebra 2 - Algebra 2 - Geometry with Advanced Algebra. (TOTAL High School Math Credits: 4)
NOTE 1: YOU SHOULD USE THE FOLLOWING EDITIONS AS THEY ARE ACADEMICALLY STRONGER THAN THE EARLIER EDITIONS ARE, AND MIXING THE OLDER EDITIONS WITH THE NEWER EDITIONS WILL RESULT IN FRUSTRATION OR FAILURE FOR THE STUDENT.
Math 76: Either the hardback 3rd Ed or the new soft cover 4th Ed. (The Math content of both
editions is the same)
Math 87: Either the hardback 2nd Ed or the new soft cover 3rd Ed. (The Math content of both
editions is the same)
Algebra 1/2: Use only the 3rd Edition. (Book has the lesson reference numbers added)
Algebra 1: Use only the 3rd Edition. (Book has the lesson reference numbers added)
Algebra 2: Use either the 2nd or 3rd Editions. (Content is identical. Lesson reference numbers
added to the 3rd Ed)
Advanced Mathematics: Use only the 2nd Edition: (Lesson reference numbers are found in
the solutions manual, not in the textbook)
Calculus: Either the 1st or 2nd Edition will work.
NOTE 2: WHEN RECORDING COURSE TITLES ON TRANSCRIPTS, USE THE FOLLOWING TITLES:
Math 76: Record "Sixth Grade Math."
Math 87: Record "Pre-Algebra."(If student must also take Algebra 1/2, then use "Seventh Grade
Math")
Algebra 1/2: Record "Pre-Algebra."
Algebra 1 & Algebra 2: Self explanatory.
Advanced Mathematics: Record "Geometry with Advanced Algebra" (1 credit) if they only
complete the first 60 - 70 lessons of that textbook.
Record "Trigonometry and Pre-calculus" (1 credit) if they have
completed the entirety of the Advanced mathematics textbook.
Under no circumstances should you record the title "Advanced
Mathematics" on the student's transcript as the colleges and
universities will not know what math this course contains,
and they will ask you for a syllabus of the course.
Calculus: Self explanatory.