Other World Computing has Apple Magic Keyboard with Numeric Keypad (MQ052LL/A) for $84.88. Shipping is free.
Thanks to Slickdeals Staff CE_Electrik for finding this deal.
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About this item:
The Magic Keyboard is back, now featuring full-sized arrow keys, 19 function keys, and a complete number pad. With all the high quality and comfort you've come to expect, the Magic Keyboard with Numeric Keypad is perfect for financial work and spreadsheet entry.