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Reference: Number and Language in Math
Numbers I: Counting, Integers, and Rationals
Division (/), Multiplicative Inverses, and Rationals
Rationals (Q) and Properties
Decimal (Or Base B) Perspective
Adding/Subtracting Decimals
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Problems
3
7.9+8.3
12.9 - 2.3
6.9+4.5
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