Pretest ม.ต้น TMAC 13

Front

What is the divisibility rule for 3?

Back

Add up the digits. The sum must be divisible by 3.

Front

The first six non-zero multiples of 7 are....

Back

7, 14, 21, 28, 35, 42

Front

Which number is a factor of 24?

Back

12

Front

What is the GCD of 3 and 6?

Back

3

Front

What is the GCD of 10, 25 and 30?

Back

5

Front

What is a multiple?

Back

A multiple of a number is the product of that number and an integer.

Front

What is a factor?

Back

A factor of a number is an integer that can be multiplied by another integer to produce that number.

Front

How do you find the GCD of two numbers?

Back

List the factors of each number and find the largest factor they have in common.

Front

What is the least common multiple (LCM)?

Back

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

Front

How do you find the LCM of two numbers?

Back

List the multiples of each number and find the smallest multiple they have in common.