Christmas Math

Front

What is an integer?

Back

An integer is a whole number that can be positive, negative, or zero.

Front

What does it mean to reduce a price?

Back

To reduce a price means to lower the cost of an item.

Front

What is the Least Common Multiple (LCM)?

Back

The LCM of two numbers is the smallest number that is a multiple of both.

Front

How do you calculate the LCM of 6 and 7?

Back

List the multiples of each number: Multiples of 6: 6, 12, 18, 24, 30, 36, 42, ...; Multiples of 7: 7, 14, 21, 28, 35, 42, ...; The LCM is 42.

Front

What is a dozen?

Back

A dozen is a group of twelve items.

Front

How many cookies are in five dozen?

Back

5 dozen = 5 x 12 = 60 cookies.

Front

What is the average?

Back

The average is the sum of a set of numbers divided by the count of numbers in the set.

Front

How do you find the average number of pieces of candy eaten per minute?

Back

Divide the total pieces of candy by the total minutes. For example, 64 pieces in 8 minutes: 64 ÷ 8 = 8 pieces per minute.

Front

What is a square-based pyramid?

Back

A square-based pyramid is a three-dimensional shape with a square base and four triangular faces that meet at a point.

Front

What are the properties of a triangle?

Back

A triangle has three sides, three angles, and the sum of its angles is always 180 degrees.