Math Olympiad

Learn how excess shortage formulas solve two-scenario problems by adding excess and shortage and dividing by their difference to determine unit and box counts, with classroom and shelter examples.

Apply the excess-excess method by computing (excess1 minus excess2) divided by the difference in per-scenario counts. See riverboat and cupcake examples to determine total people and total cupcakes.

Identify whether the problem is a shortage or an excess, then apply the corresponding formula to solve for counts and verify with candy, dollars, and marbles scenarios.

Explore shape pattern problems, identify patterns in figures, count squares and lines, and use simple formulas to predict future figures.

Explore circle and square pattern problems, derive the formula y=2x-1 to count circles, and practice counting squares in figures four and five to reinforce pattern reasoning.

Practice age-relationship problems in Math Olympiad using variables and linear equations. Apply time-line reasoning, distributive property, and substitution checks to verify solutions.

Explore strategies for solving math olympiad table problems by ranking siblings, and practice truth-teller logic with triplets and a country-hobby puzzle to sharpen deduction.

Solve speed and cue problems, including a 60-meter chase and a five-person line-up, deriving a ten-second catch-up and the order from front to back: Susan, Claire, Adam, John, Mary.