High School: Number and Quantity

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

Directions: Using the digits 1 to 6, at most one time each, fill in the boxes make the greatest or least value. Extension: How close to 1 can you get? Source: Erick Lee

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

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