Directions: Use the digits 1 to 9, at most one time each, to fill in the boxes so that the three fractions have a product as close to 1 as possible. Source: Patrick Vennebush

Read More »# Tag Archives: DOK 3: Strategic Thinking

## Subtracting Decimals to Make Them As Close to One as Possible

Directions: Use the digits 1 to 9, at most one time each, to fill in the boxes to get the difference that is as close to 1 as possible. Source: Giselle Garcia

Read More »## Multiplication of large numbers

Directions: Use the digits 1 to 9, at most one time each, to create two numbers that have a product as close to 500,000 as possible. NOTE: You may use any length of factors as you would need. Ex 8 digit by 1 digit. 4 digit by 3 digit. Source: Miles Knight

Read More »## Compound Inequalities 1

Directions: Using the digits 1 to 9, at most one time each, make a compound inequality that has the largest interval. Source: Robert Kaplinsky

Read More »## Parallel and Perpendicular Lines

Directions: Using the digits 0 to 9, at most once each time, fill in blanks to create a set of 4 points that create either parallel or perpendicular lines, depending on how you connect them. ( ___, ___ ) ( ___, ___ ) ( ___, ___ ) ( ___, ___ ) Source: Bryan Anderson

Read More »## Negative Exponents – Closest to Zero

Directions: Use the digits 0 to 9, at most one time each, to fill in the boxes to to make a result that is as close to zero as possible. Source: Daniel Luevanos

Read More »## Discriminant

Directions: Using the digits 0 to 9 at most one time each, fill in the boxes to make one function have no real roots, another function have one real root, and the last function have two real roots. Source: Lynda Chung

Read More »## Adding Mixed Numbers 3

Directions: Use the digits 1-9 each once to make a the largest possible sum. Source: Robert Kaplinsky and Ellen Metzger

Read More »## Sum of Fractions Closest to 10

Directions: Using the digits 1 through 9, at most one each time, fill in the boxes to make the statement true. Source: Nanette Johnson, based on Giselle Garcia’s problem

Read More »## Max Intercept

Directions: Using the digits 1 to 9 at most one time each, fill in the boxes to write the equation of a line that passes through the point with the largest possible y-intercept. How many solutions can you find? Source: Andy Schwen

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