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Robert Kaplinsky

Equations of Perpendicular Lines

Directions: Using the digits 1 to 9 at most one time each, fill in the blanks to create two distinct perpendicular lines.  Note that the coefficient for the second line’s y is negative. __ x + __ y = __ __ x + -__ y = __ Source: Bryan Anderson

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Equations of Parallel Lines

Directions: Using the digits 1 to 9 at most one time each, fill in the blanks to create two distinct parallel lines. __ x + __ y = __ __ x + __ y = __ Source: Bryan Anderson

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Equidistant Points 2

Directions: Using the digits 1 to 9 at most one time each, fill in the boxes to create two points that are equidistant from (4,-1). Source: Bryan Anderson

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Making Change 2

Directions: Make 47¢ using exactly 6 coins with either quarters, dimes, nickels, or pennies. Source: Thad Domina and Robert Kaplinsky

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Making Change

Directions: Make 47¢ in three different ways with either quarters, dimes, nickels, or pennies. Source: Thad Domina and Robert Kaplinsky

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Circle Radius

Directions: What is a radius for a circle that has an area of 20 to 25 square feet? Source: Nathan Charlton

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Rectangle Area and Perimeter

Directions: The length of a rectangle is 6 cm and its perimeter is 16 cm what is the area of the rectangle in square centimeters? Source: Trends in International Mathematics and Science Study (TIMSS)

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