 # Tag Archives: DOK 2: Skill / Concept

## Circle Tangent to Line

Directions: Using the digits 0 to 9 at most one time each, place a digit in each box to create a circle tangent to the line x+y=5. Source: Linnea Reyes-LaMon

## Interior and Exterior Angles of Triangles

Directions: In triangle ABC, angle ABC is obtuse. Using the digits 1 to 9 at most one time each, place a digit in each box to make angle ACB the smallest possible acute angle. Source: Jay Sydow

## Comparing Fractions to Decimals 2

Directions: Using the digits 1 to 9 at most one time each, place a digit in each box to make a true statement. Source: Owen Kaplinsky

## Comparing Fractions to Decimals

Directions: Using the digits 1 to 9 at most one time each, place a digit in each box to make a true statement. Source: Owen Kaplinsky

## Area of an Obtuse Triangle

Directions: Using the digits 1 to 9 at most one time each, place a digit in each box to make a triangle with side lengths that give the corresponding area. Source: Owen Kaplinsky

## Logarithms

Directions: Using the digits 1 to 9 at most one time each, place a digit in each box to create two different solutions to the problem: Source: Noel Chang

Directions: Using the digits 1 to 9 at most one time each, place a digit in each box so that each quadratic is the same. Source: John Rowe

## Infinitely Many Solutions System of Equations

Directions: Using the digits 1 to 9 at most one time each, place a digit in each box to create a a system of equations with infinitely many solutions. Source: Mike