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## Multiplying Two-Digit Numbers (Middle School)

Directions: Using the digits 1 to 9 at most one time each, fill in the boxes to make the smallest (or largest) product. Note: This problem’s difficulty can be adjusted by altering the number of digits (boxes), picking smallest or largest, or by picking either a positive, negative, or both. Source: Robert Kaplinsky

## Interpreting Percentages

Directions: What is the fewest number of people surveyed if exactly 93.6% of people completed a survey? Source: Robert Kaplinsky

## Rolling with the Same Probability

Directions: Using the digits 1 to 9 at most one time each, fill in the boxes to complete this sentence: Rolling a sum of ___ on two ___-sided dice is the same probability as rolling a sum of ___ on two ___-sided dice. Source: Audrey Mendivil, Daniel Luevanos, and Robert Kaplinsky

## Probability of Rolling Two Six Sided Dice

Directions: What value(s) have a 1/12 chance of being rolled as the sum of two 6-sided dice? Source: Daniel Luevanos

## Equivalent Equations

Source: Smarter Balance 7th grade practice test

## Two-Step Equations

Directions: Using the digits 1 to 9 at most one time each, fill in the boxes to find the greatest (or least) possible values for x. Source: Audrey Mendivil, Daniel Luevanos, and Robert Kaplinsky

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

## Rectangular Prism Surface Area Versus Volume

Directions: What is least amount of surface area possible on a rectangular prism with a volume of 64 cubic inches? Source: Robert Kaplinsky