BuzzMath Middle School by Scolab (Grade 6, Grade 7, Grade 8) TOPICS √ Number Sense and Operations √ Fractions √ Decimals √ Rational Numbers √ Divisibility, Factors, and Multiples √ Roots, Exponents, and Scientific Notation √ Number Properties √ Percents, Ratios, and Proportions √ Patterns and Sequences √ Algebraic Expressions √ Equations, Functions, and Inequalities √ Geometry √ Measurement √ Data, Graphs, and Probability