Perfect Square Numbers

This lesson introduces perfect square numbers, explaining them through visual examples using unit squares. It defines a perfect square as a number formed by multiplying a whole number by itself. Examples include 16, 9, and 49. The lesson emphasizes the importance of memorizing the first 10 perfect squares for mathematical concepts.

Which of the following numbers can be arranged into a larger square?

• 16

• 18

• 14

• 20

What is the definition of a perfect square number?

• A number that is prime

• A number that can be made by multiplying a whole number by itself

• A number that can be divided by 2

• A number that is a multiple of 10

Which of the following is a perfect square number?

• 49

• 50

• 48

• 47

What is 9 squared?

• 18

• 72

• 27

• 81

Which of these numbers is NOT one of the first 10 perfect square numbers?

• 64

• 121

• 81

• 100