Tag Archives: Erick Lee

Directions: Using the digits 1 to 9, at most one time each, place a digit in each box to complete the first three terms of the arithmetic and geometric sequences. What sequences result in the greatest sum of their second terms? (e.g. 3, 5, 7 and 2, 6, 18 would result in a sum of 5 + 6 = 11). …

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

Directions: Using the digits 1 to 9, at most one time each, place a digit in each box 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 0 to 9, as many times as you want, place a digit in each box to create a correct number sentence. Source: Erick Lee

Directions: Using the digits 0 to 9, at most one time each, place a digit in each box to make the value of this expression is as large as possible. Challenge: Try to make this expression as close to 30 as possible (for an added challenge, try to make this expression as close to 30 as possible using just the …

Directions: Using the digits 1 to 9, at most one time each, place a digit in each box to fill in the circles of the triangle. The sum of the numbers on each side of the triangle is equal to the length of that side. Arrange the numbers so that the triangle is an equilateral triangle. Source: Erick Lee

Directions: Fill each blank with a different integer such that the point (4,4) is within the solution region created by the constraints. Source: Erick Lee

Directions: Using the digits 1 to 8, at most one time each, place a digit in each blank 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: There are _____ red marbles and _____ blue marbles in Bag A. There are _____ red marbles and _____ green marbles in Bag B. Using the digits 1 to 9 at most one time each, fill in the boxes to make the probability of drawing a red marble from either bag the same. Extension: Change the problem such that …