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

Read More »# Tag Archives: DOK 2: Skill / Concept

## 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

Read More »## 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

Read More »## 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

Read More »## 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

Read More »## 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

Read More »## Identical Quadratics 2

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

Read More »## 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

Read More »## Solving Quadratic Equations

Directions: Use only the digits 1-9, each digit only once, create a problem that has the solutions x = 4 and x = -1/2. Source: Amy Herzog

Read More »## Imaginary Solutions to a Quadratic Equation

Directions: Using the digits 1 to 9 at most one time each, place a digit in each box to create a quadratic equation with an imaginary solution of the form ±𝒃𝒊 where 𝒃 is a whole number. Source: Bradley Springer

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