Directions: What is the smallest number, greater than zero, that is divisible by 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10? Source: Brian Lack

Read More »# Grade 4

## 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 »## The Largest Fraction That Is Less Than One Half

Directions: Using the whole numbers 1 through 9 at most one time each, create the largest fraction possible that is less than 1/2 and has a single digit in both the numerator and denominator. Source: Dr. Brian Lack

Read More »## Multiplying Mixed Numbers by Whole Numbers

Directions: Make the smallest (or largest) product by filling in the boxes using the whole numbers 1-9 no more than one time each. Source: Robert Kaplinsky

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

Read More »## Squares: Perimeter v. Area

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

Read More »## Rectangles: Perimeter v. Area

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

Read More »## Subtracting Multi-Digit Numbers

Source: Smarter Balance

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