Not sure about pre-algebra but0 = 000 1 = 001 2 = 002 3 = 003
4 = 010 5 = 011 6 = 012 7 = 013
8 = 020 9 = 021 10 = 022 11 = 023
12 = 030 13 = 031 14 = 032 15 = 033
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sixteen
121011122021223031
Please rephrase the question
No. Egyptians did not invent numbers. Numbers used for counting were first used tens of thousands of years ago, before written history and thus before there are known civilizations. As for base or place number systems, the Myans are believed to be the first to create such a number system. It was base 60. Then the Egyptians invented a 10 base number system.
All whole numbers from 1 to 14