Front

What is a multiple of 7 and 8?

Back

A multiple of 7 and 8 is a number that can be divided evenly by both 7 and 8. For example, 56 is a multiple of both.

Front

If Mrs. Costello's Mets have won 5 National League pennants, how many American League pennants have the Yankees won if they won 8 times as many?

Back

The Yankees have won 40 American League pennants (5 x 8 = 40).

Front

What expression describes an array of 3 rows and 6 columns?

Back

The expression is 3 x 6.

Front

How many people counted by 10s to get to 100?

Back

10 people counted (10 x 10 = 100).

Front

What are the factors of 18 and 24?

Back

The factors of both 18 and 24 include 1, 2, 3, 6.

Front

What is a factor?

Back

A factor is a number that divides another number without leaving a remainder.

Front

What is a multiple?

Back

A multiple is a number that can be divided by another number without a remainder.

Front

How do you find the least common multiple (LCM) of two numbers?

Back

To find the LCM, list the multiples of each number and find the smallest multiple they have in common.

Front

What is the greatest common factor (GCF)?

Back

The GCF is the largest number that divides two or more numbers without leaving a remainder.

Front

What does it mean to count by 10s?

Back

Counting by 10s means adding 10 repeatedly, such as 10, 20, 30, 40, etc.