In algebra, letters are used when numbers are not known. Algebraic terms, such as \(2s\) or \(8y\), leave the multiplication signs out. So rather than \(2 \times s\), write \(2s\), and rather than \(8 ...
This is a preview. Log in through your library . Abstract As attention to the development of algebraic understandings at early grade levels increases, theory and empirical support for these efforts ...
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