Tag Archives: DOK 3: Strategic Thinking

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

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 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 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

Directions: Using the digits 1 to 9 at most one time each, place a digit in each box to make a true equation where x has the greatest possible value. Source: Robert Kaplinsky

Directions: Using the digits 1 to 9 exactly one time each, place a digit in each box to make the sum as close to 1000 as possible. Source: John Ulbright and Robert Kaplinsky

Directions: Using the digits 1 to 8 at most one time each, fill in the coordinates to create the vertices of a right triangle: A(__, __), B(__, __), C(__, __) Extension: Try to do this using only the digits 1 to 6. Source: Erick Lee

Directions: Using the digits 1 to 8 at most one time each, fill in the coordinates to create the vertices of a rectangle: A(__, __), B(__, __), C(__, __), D(__, __). Extension: What is the rectangle with the largest/smallest area/perimeter that you can find? Source: Erick Lee

Directions: What is the largest amount in coins you can have and not be able to make change for a dollar without shorting yourself or cheating the other person? Source: Glenn Waddell