Yeah, it looks like that set has a 1x1 zero key. I could always use a blank R1 for the "00". There's hope yet!
This particular Keycool model looks like a knockoff/clone of the standalone Filco number pad, so I'm surprised that Filco went with a somewhat unorthodox layout that's different from the number pad on the Majestouch. I guess they designed it with bean-counters in mind, versus people who just want a number pad for their TKL.