计时测试
SAT数学模拟测试。
10 套原创完整测试，每套 22 道题。
Practice Test 1
Covers linear equations, systems, polynomial expressions, right-triangle trig, and probability. Balanced difficulty.
Practice Test 2
Focuses on slope and intercept, quadratics, geometry angles, and data interpretation from tables and charts.
Practice Test 3
Linear inequalities, factoring quadratics, circle properties, and statistical measures. Medium-hard emphasis.
Practice Test 4
Systems of equations, nonlinear functions, volume formulas, percentage problems, and probability.
Practice Test 5
Function notation, transformations, coordinate geometry, rate problems, and advanced data analysis.
Practice Test 6
Interpreting linear models, equivalent expressions, triangle similarity, and ratios and proportions.
Practice Test 7
Quadratic formula, vertex form, Pythagorean theorem, scatter plots, and compound probability.
Practice Test 8
Systems with nonlinear equations, exponential growth, circle equations, and two-way tables.
Practice Test 9
Absolute value, Vieta's formulas, sector area, standard deviation, and skewed distributions.
Practice Test 10
Hardest test — advanced linear models, discriminant analysis, coordinate geometry, and complex probability.
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使用题库按主题和难度筛选，按自己节奏练习。