There is a calculation subtest, which is a series of progressively more challenging math problems of various types, in isolation. (I.e., just a naked math problem in a box, with negligible language.) Completed as a paper and pencil task, not timed.
The reasoning subtest consists of mostly word problems, presented orally. Some can be solved without paper and pencil, others might require scratch paper. Multi-step problems and applications are the emphasis. Also not timed.
The KTEA-III, which just came out, also has a fluency subtest, which is how fast you can write your math facts down. Timed, clearly.
