An equation that involves variables and constants, typically expressed as a statement that two expressions are equal.

A math puzzle where a person performs a series of operations on a number they choose, leading to a predictable outcome, often using algebra for explanation.

Change the final operation to subtract the original number and adjust the constant added earlier.

A triangular arrangement of numbers where each number is the sum of the two numbers directly below it.

By solving for each number using the sums of the numbers directly below it.

They serve as the foundational numbers used to calculate the sums in the rows above.

Top number = a + 2b + c, where a, b, and c are the values from the bottom row.

A sequence where the next number is found by adding the two numbers before it: 1, 1, 2, 3, 5, 8, etc.

Using a grid to find four numbers based on the sum provided by a person, often involving algebraic expressions.

Set up an equation based on the grid arrangement and solve for the unknowns.

Evaluate all combinations of the digits as factors and compare their products for the largest outcome.

Operations typically include addition, subtraction, multiplication, and division.

The last two digits represent the day (D) and the preceding digits represent the month (M).

Use the sum provided in each row to create equations and solve for the shape values.

Yes, by determining the operations that consistently yield a predictable answer based on chosen numbers.

A visual representation where shapes or letters represent numbers, often requiring calculations to deduce their values.

Placement affects the multiplicand and multiplier; larger digits typically yield larger products when placed correctly.

Each number builds on the previous two numbers, showing a connection between the lower and upper levels in the pyramid.

Algebraic expressions that replace numbers with letters or symbols, representing unknown values.