4th Grade PRACTICE Flashcard Bowl

Front

What is the formula for the area of a rectangle?

Back

Area = length × width.

Front

If a rectangular room has an area of 96 square feet and one wall is 8 feet long, how do you find the other wall's length?

Back

Divide the area by the length of the known wall: width = Area / length.

Front

What is the formula for the perimeter of a rectangle?

Back

Perimeter = 2 × (length + width).

Front

What is a prime number?

Back

A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself.

Front

What is the difference between the greatest and least values in a data set?

Back

The difference is calculated by subtracting the least value from the greatest value.

Front

How do you convert a fraction to a decimal?

Back

Divide the numerator by the denominator.

Front

Back

Front

What is an angle?

Back

An angle is formed by two rays with a common endpoint, called the vertex.

Front

How many degrees are in a right angle?

Back

A right angle measures 90 degrees.

Front

What is the sum of angles in a triangle?

Back

The sum of the interior angles in a triangle is always 180 degrees.