Directions: Using the numbers 0 through 9, fill in the boxes to create a correct number sentence using each number as many times as you want. Source: Erick Lee

Read More »# Tag Archives: Erick Lee

## Evaluating a Decimal Expression

Directions: Using the whole numbers 0 through 9, no more than one time each, 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 digits 1 through 9). Source: …

Read More »## Equilateral Triangle

Directions: Using the whole numbers 1 through 9, no more than one time each, 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

Read More »## System of Inequalities 2

Directions: Fill each blank with a different integer such that the point (4,4) is in the region created by the constraints has the least amount of area. Source: Erick Lee

Read More »## System of Inequalities

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

Read More »## Creating Right Triangles 2

Directions: Using only the whole numbers 1 through 8 (without repeating any number), fill in the coordinates to create the vertices of a right triangle: A(__, __), B(__, __), C(__, __) Extension: Try to do this using only the whole numbers 1 through 6. Source: Erick Lee

Read More »## Creating Rectangles 2

Directions: Using only the whole numbers 1 through 8 (without repeating any number), 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

Read More »## Probability with Marbles

Directions: There are _____ red marbles and _____ blue marbles in Bag A. There are _____ red marbles and _____ green marbles in Bag B. Place a unique whole number from 1 to 9 in each blank to make the probability of drawing a red marble from either bag the same. Extension: Change the problem such that the number of …

Read More »## Probability with Spinners

Directions: Select three of the spinners from the image below (you may pick more than one of each) such that the total number of sectors in all three spinners totals 10. Select spinners so that the probability of all three spinners landing in the shaded sector is the smallest (or largest). Extension: How would the answer change if you could …

Read More »## Two-Step Equations 3

Directions: Use the whole numbers 1 through 9 only one time each to find the largest (or smallest) possible values for the sum of x and y. Source: Erick Lee

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