TExES 391 — Math Subject Exam 902

Find Your EC-6 Math Gaps
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The Mathematics subject exam (902) is passed — and retaken — on its own. Take the free diagnostic to see which of the six math competencies need your attention, then focus your preparation exactly there.

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All 6 Competencies Covered

The Core Subjects EC-6 Mathematics subject exam (902) tests you across six domains. Practice each one independently or let the adaptive engine focus on your weak spots.

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Number Concepts & Operations
Place value, fractions, decimals, percents, and multi-step operations with whole numbers at the elementary level.
~85 questions • Domain 1 (25%)
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Patterns & Algebra
Extend patterns, write and solve simple equations, and read function tables and input-output rules.
~81 questions • Domain 2 (15%)
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Geometry & Measurement
2D and 3D shapes, perimeter, area, volume, customary and metric units, time, and money.
~82 questions • Domain 3 (20%)
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Probability & Statistics
Read graphs, interpret data sets, find mean/median/mode, and solve basic probability problems.
~80 questions • Domain 4 (15%)
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Mathematical Processes
Problem-solving strategies, mathematical reasoning, estimation, and connecting representations.
~76 questions • Domain 5 (10%)
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Math Learning & Instruction
How elementary students learn math, common misconceptions, assessment strategies, and curriculum.
~80 questions • Domain 6 (15%)

How QuantegyAI Works

Not another question dump. A system that figures out exactly where you need help.

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DiagnosticAnswer 20 questions across all domains. We map your strengths instantly.
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Adaptive practiceIRT algorithm adjusts difficulty to keep you in the optimal learning zone.
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Targeted reviewVisual explanations and worked solutions for every question you miss.
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Track progressXP, competency scores, and a readiness meter show exactly where you stand.

Also see: the EC-6 Math (902) subject exam guide, or browse our dedicated EC-6 Math course modules.

Frequently Asked Questions

What is on the TExES Core Subjects EC-6 Math exam?
The Mathematics subject exam (902) of the TExES Core Subjects EC-6 (391) covers six domains: Number Concepts & Operations (25%), Geometry & Measurement (20%), Patterns & Algebra (15%), Probability & Statistics (15%), Mathematical Learning & Instruction (15%), and Mathematical Processes (10%). The math exam has 40 questions out of 210 total across the five subject exams (901–905).
What is the passing score for TExES Core Subjects EC-6?
The passing score for each TExES Core Subjects EC-6 (391) subject exam is 240 on a scaled score range of 100–300. Each of the five subject exams is passed separately, and Texas allows candidates to retake only the individual subject exams they fail — including Mathematics (902) on its own.
Is TExES Core Subjects EC-6 harder than Math 7-12?
The Math 7-12 (235) exam goes much deeper into higher-level math (calculus, abstract algebra, statistics). Core Subjects EC-6 Math tests elementary content but emphasizes mathematical reasoning and pedagogy — how to teach it, not just solve it. Many candidates find Domain 6 (instruction) the most surprising part.
How many times can I retake TExES Core Subjects EC-6?
Texas allows unlimited retakes, but you must wait 30 days between attempts. You only need to retake the subjects you failed, not the entire exam.

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