Grade 3

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

Directions: Using the digits 1 to 9, at most one time each, fill the boxes below to create the smallest possible difference. Source: Graham Fletcher

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

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

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

Directions: How can you tell which square is bigger: a square with a perimeter of 25 units or a square with an area of 25 square units? Source: Robert Kaplinsky

Directions: How can you tell which rectangle is bigger: a rectangle with a perimeter of 24 units or a rectangle with an area of 24 square units? Source: Robert Kaplinsky

Directions: Label the point where 3/4 belongs on the number line. Be as precise as possible. Source: Inspired by Illustrative Mathematics