Keller's Math SAT Game Plan...If you are aiming for a 550:
In the 20-question section (all multiple choice)
1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20
In the 18-question section (1-8 multiple choice, 9-18 grid-in)
1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18
In the 16-question section (all multiple choice)
1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16
Answer ALL of the questions in the BLUE zone,  even if you are not sure.  These are a GOOD risk.
IGNORE the questions in the RED zone.  They are a BAD risk, unless they match a specific strategy you have learned from reading my book , which of course, you really should do!
If you get all of the BLUE zone right, you will score approximately 590.
You can even get 4 wrong and still score approximately 550.
MOST IMPORTANT RULE:  GO SLOW!  Take your time and get things right!!!