★ Learn ★

Eight lessons, one per topic.

Theory, tricks, worked examples from real AMC 8 problems, and practice for each. Pick a topic and start reading.

arith 10 chapters

Arithmetic & Operations

Look for structure before you calculate.

AMC 8 problems #1–10 are not calculator problems. Each one rewards the kid who spots the shape of the numbers first.

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nt 9 chapters

Number Theory

What whole numbers are made of.

Divisibility rules, primes, units digits. Once you see how integers are built from smaller pieces, the problems get easy.

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fdp 9 chapters

Fractions, Decimals & Percents

Three names for the same number.

Percents are multipliers. Fractions are division. Decimals are place value. Move between them freely.

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rates 9 chapters

Ratios, Rates & Proportions

Same ratio in two places.

Distance = Speed × Time. Three friends in one formula carry most of the AMC 8.

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alg 10 chapters

Algebra & Patterns

Turn the story into a letter.

Algebra is a language for unknowns. Patterns are predictions about what comes next.

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geo 11 chapters

Geometry & Measurement

Draw the picture. Then look for symmetry.

About one in every four AMC 8 problems is geometry. The kid who draws a careful diagram is half done.

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cp 12 chapters

Counting & Probability

Count carefully. Don't compute.

Counting is mostly about <i>finding the right way to list</i>. Probability is just counting twice — once for the favorable outcomes, once for the total.

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logic 9 chapters

Logic & Word Problems

Turn the story into a table.

Logic puzzles look like English. They're really tables and constraints in disguise.

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Cross-topic pages

Three pages that span every lesson at once.

Want to skip straight to problems? Practice · Mock test