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Reference: Number and Language in Math
Numbers I: Counting, Integers, and Rationals
Natural Numbers and Arithmetic
Writing Numbers: Positional Notation
Why the Base 10 System in Particular?
Converting from Decimal (Base 10) to Binary (Base 2)
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Problems
2
What is 281 in binary?
Bob knows a number in binary: 10010110X01. He wants to know what X represents. When converting the number to base 10, the result is 12X1. What is X?
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