Grade 8

Directions: Using the digits 1 to 9, at most one time each, fill in the boxes to make the following expression as close to 0 as possible. Source: Erick Lee

Directions: Using the digits 1-9 at most one time each, fill in the blanks so that when you solve for x, it is a whole number. Source: Franco D. Adkins

Directions: Using the digits 1- 9, at most one time each, to fill in the boxes to make each expression evaluate to a perfect square number. Extension/Challenge: What is the largest/smallest square number you can make? How many different perfect square numbers could be made? Source: Erick Lee

Directions: Using the digits 1 to 9, at most one time each, fill in the boxes to make a true statement. Source: Ryun Deckert and Brock Montgomery

Directions: Using the digits 1 to 9, find one pair of digits to fill in the boxes to create expressions that produce one rational root and three irrational roots. Source: Norma Gordon

Directions: Using the digits 1 to 9, find one pair of digits to fill in the boxes to create expressions that produce two rational roots and two irrational roots. Source: Norma Gordon

Directions: Using the digits 1 to 9, find one pair of digits to fill in the boxes to create expressions that produce one rational root and three irrational roots. Source: Norma Gordon

Directions: Using the digits 2 to 9, find one pair of digits to fill in the boxes to create expressions that produce two rational roots and two irrational roots. Source: Norma Gordon

Directions: Using the digits 2 to 9, fill in the boxes with a unique pair that create expressions that produce one rational root and three irrational roost. Source: Norma Gordon

Directions: Using the digits 2 to 9, fill in the boxes with a unique pair that create expressions that produce three rational roots and one irrational root. Source: Norma Gordon