Advanced regression (inference and transforming). Inference for categorical data (chi-square tests). Two-sample inference for the difference between groups. Significance tests (hypothesis testing). Counting, permutations, and combinations. Displaying and comparing quantitative data. Non-right triangles & trigonometry (Advanced). Exponents, radicals, and scientific notation. Equations, expressions, and inequalities. Transformations, congruence, and similarity. Negative numbers: multiplication and division. Negative numbers: addition and subtraction. Multi-digit multiplication and division. Arithmetic patterns and problem solving. 
Equivalent fractions and comparing fractions.
And they’re even better than traditional math worksheets – more instantaneous, more interactive, and more fun! Just choose your grade level or topic to get access to 100% free practice questions: That’s because Khan Academy has over 100,000 free practice questions.
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