Sharp- Wondertopia (19??, LCD, Watch Batteries, Model# WN-100/WN-102)

Mathematical quiz game, calculater and quartz alarm clock. I've found a couple of different versions of this, and two different model numbers, so they are probably slightly different.

This is WN-100

This is WN-102:

This is a third version, but I can't make out the model number (WN-103?):

Do I have this? No.

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