### Mathematics Level 7

### Unit 1 The Number System

A numeral system (or system of numeration) is **a writing system for expressing numbers**; that is, a mathematical notation for representing numbers of a given set, using digits or other symbols in a consistent manner. ... Give every number represented a unique representation (or at least a standard representation)

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Grade7 Module 1.1 : Adding and Subtracting Integers

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Grade7 Module 1.2: Multiplying and Dividing Integers

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Grade7 Module 1.3: Rational Numbers

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