Expressions & Equations

Directions: Using the digits 1 to 9 at most one time each, place a digit in each box to create two equations: one where x has a positive value and one where x has a negative value. You may reuse all the digits for each equation. Source: Robert Kaplinsky in Open Middle Math

Directions: Using digits -9 to 9 at most one time each, create an inequality that has a solution of x > 2. Source: Sarah Furman

Directions: Using the digits 0 to 9, at most one time each, to make a true equation. Source: Linda Cochran

Directions: Using the integers -4 to 4, at most one time each, create an inequality with solutions of x > 2/3. Source: Robert Kaplinsky

Directions: Using the digits 1 to 9, at most one time each, fill in the boxes to find the largest (or smallest) possible values for the sum of x and y. Source: Erick Lee

Directions: Using the digits 1 to 9 at most one time each, fill in the boxes to find the largest (or smallest) possible values for x. Source: Chase Orton and Mark Goldstein

Directions: For each problem below, use the digits 1 to 9 at most one time each, to fill in the boxes to find the the greatest value for x that you can. Source:  Chase Orton and Mark Goldstein

Directions: Using the digits 1 to 9 at most one time each, fill in the boxes to create a true inequality. Source: Bryan Anderson

Directions: Using the digits 1 to 9 at most one time each, fill in the boxes to create a true inequality. Source: Bryan Anderson

Directions: Using the digits 1 to 9 at most one time each, fill in the boxes to create a true inequality. Source: Bryan Anderson