Purcell Math

Key Math Skills Every Student Should Know by Grade 2

\[ {2}^2 = 4, {3}^2 = 9, {4}^2 = 16, etc \]
\[ {\sqrt 16} = 4, {\sqrt 25} = 5, etc \]
\[ {2}^3 = 8, {3}^3 = 27, etc \]

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