Directions: How many numbers are between 1 and 3? Source: Robert Kaplinsky

Read More »# Grade 3

## Biggest Rectangle

Directions: Find the largest area for the rectangle filling the boxes with numbers 1 through 9. You may use a digit at most once. Source: Nanette Johnson, Inspired by Mike Chamberlain’s Problem

Read More »## Multiplying a Two-Digit Number by a Single-Digit Number

Directions: Using the numbers 1 – 4, no more than one time each, make the largest possible product. Source: Robert Kaplinsky

Read More »## Greatest Difference of Two Rounded Numbers

Directions: Using the digits 0 through 9, find the two numbers that, when rounded to 500 have the greatest possible difference. Each digit can only be used once. Source: Michael Wiernicki and Graham Fletcher

Read More »## Subtraction to get the Smallest Difference

Directions: Place any digit, 1 through 9, in the boxes below to create the smallest possible difference. Each digit can only be used once. Source: Graham Fletcher

Read More »## Placing Fractions on A Number Line

Directions: Create 5 fractions using the whole numbers 0 through 9, exactly one time each as numerators and denominators, and place them all on a number line. Source: Robert Kaplinsky

Read More »## 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)

Read More »## Perimeter

Directions: Draw three rectangles with a perimeter of 20 units. Source: Dan Meyer

Read More »## Rectangles: Maximizing Area

Directions: What is the greatest area you can make with a rectangle that has a perimeter of 24 units? Source: Robert Kaplinsky

Read More »## Rectangles: Maximizing Perimeter

Directions: What is the greatest perimeter you can make with a rectangle that has an area of 24 square units? Source: Robert Kaplinsky

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