Directions: Using the digits 0-9 at most one time each, make both of these equations true. Source: Jonathan Newman

Read More »# High School: Number and Quantity

## Complex Number Products (Greatest Value)

Directions: Use the integers -9 to 9, at most one time each, to fill in the boxes and make a real number product with the greatest value. Source: Robert Kaplinsky

Read More »## Complex Number Products

Directions: Use the integers -9 to 9, at most one time each, to fill in the boxes twice: once to make a positive real number product and once to make a negative real number product. Source: Robert Kaplinsky

Read More »## Factoring Complex Numbers

Directions: Find Integers a,b,c,d such that: Source: Bryan Anderson

Read More »## Matrix Multiplication

Directions: Using the digits 1-9, each only once, fill in the blanks to create the smallest possible value for a. Source: Bryan Anderson

Read More »## Rational Exponents

Directions: Fill in the boxes using the whole numbers 1 through 6 to make the largest (or smallest) possible number. Use each digit at most once. Extension: How close to 1 can you get? Source: Erick Lee

Read More »## Multiply Complex Numbers

Directions: Create two complex numbers (a + bi) such that the product of your numbers is 67. Each value of a, b must be non-zero. Source: Chris Duran

Read More »## Rational and Irrational Numbers 2

Directions: Using only numbers 1-9 (without repeating any number), fill in the boxes to create the following number types: Source: Bryan Anderson

Read More »