Found some more specifics reading old posts:
https://illinoisnwea.wikispaces.com/FAQ+MAP
What is the difference between the 2-5 version and the 6+ version of the tests?
- Math 2-5: has no items including computation with decimals, fractions, percents, etc.
- Math 6+: includes those computation items listed above, also ratio and proportion and other more difficult skills
- Reading 2-5: passage length cannot exceed 100 words
- Reading 6 +: passage length can go up to 600 words
NOTE: This does not effect how high the student can score on the test. A student who takes a 2-5 test can score just as high as a student on a 6+ test, but the content is limited.