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<p>Yes, it does. It’s a lot harder test. As for the numbers, a lot of smart people can get one wrong on the math SAT (due to an arithmetic error or something). I knew one guy who was in the top 100 of math students (in terms of placement in the math olympiad tryouts) in the United States who didn’t get an 800 on the math SATI. Of course, we teased him a lot for that. Personally, I tend to get 1 or 2 wrong no matter how hard or easy the test is. I got an 800 on math GRE and the SATII math, but I got a couple wrong on the math SATI. (For one question I didn’t grid in the decimal point and another was an arithmetic error.) Anyway, you get the idea.</p>