A: I remember any number in base ten can be represented as …
It could be thinking of a simpler situation (what Mason et al (1982) call “specializing”)
A: Let me try and simplify the problem ... Maybe I should try another simplified version of the problem, but this time let V=1000 and odd power of 10. ... [A2P2, PST 1]
A: Break it into smaller numbers … which are powers of ten ...[A2P2, PST 2]
It could be looking for patterns.