Directions: Using the digits 1 to 9 at most one time each, fill in the boxes to make the biggest/smallest product. Source: Nanette Johnson

Directions: Using only numbers 1-9 (without repeating any number), fill in the boxes to create a set of data with the largest possible absolute deviation. Source: Mark Alvaro

Directions: You have $1.00 in your pocket. You only have pennies, nickels, and dimes. You don’t have any quarters or other coins. What coins are in your pocket? Source: Andrew Gael

Directions: Using the digits 0 to 9 at most one time each, fill in the boxes to make a true equation. Source: Adrianne Burns

Directions: Using only numbers 1-9 (without repeating any number), fill in the boxes to create a set of data with the largest possible standard deviation. Source: Mark Alvaro

Directions: Using the digits 1 to 9 at most one time each, fill in the boxes to make a true equation. Source: Adrianne Burns

Directions: Using the digits 1 through 9, at most one time each, fill in the boxes to create 2 rectangular prisms so the volume of one rectangular prism is double the volume of the other rectangular prism. Source: Joe Schwartz

Directions: Fill in the blanks using all different non-zero digits (except the numbers 1 and 4, which have already been used) to make the greatest possible quotient. Source: Brian Lack

Directions: Using the digits 1 to 9 at most one time each, fill in the boxes to create a fraction as close to one as possible. Source: Peter Morris

Directions: Using the digits 0 to 9 at most one time each, fill in the boxes so that the values of each expression increases from least to greatest. Each number may only be used once. Source: John Rowe