These are common terms and topics in multiple middle school math classes. This set includes absolute value, acute angles, additive inverse, angle, circumference, coefficient, common denominator, complementary angles, congruent, coordinates, coordinate plane, denominator, dividend, divisor, equation, exponent, factor, integers, inequality, mean, median, mode, numerator, obtuse, origin, parallel, perpendicular, pie chart, prime number, prime factorization.