Rational Numbers

Convert Repeating Decimals to Fractions 1: https://www.khanacademy.org/math/algebra/solving-linear-equations-and-inequalities/conv_rep_decimals/v/coverting-repeating-decimals-to-fractions-1

Convert Repeating Decimals to Fractions 2: https://www.khanacademy.org/math/algebra/solving-linear-equations-and-inequalities/conv_rep_decimals/v/coverting-repeating-decimals-to-fractions-2

Square Roots: https://www.youtube.com/watch?v=mbc3_e5lWw0