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Square numbers

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A square number is the product of a whole number times itself. Square numbers are sometimes called perfect squares.

For example, 9 is a square number because

3

×

3

=

9

.

You can say that three squared is nine.

Modeling square numbers

You can make a square model of any square number! For example, the models below show the square numbers 9 and 16.

Square numbers up to 100

The list below shows all of the square numbers up to 100.

1

×

1

=

1

2

×

2

=

4

3

×

3

=

9

4

×

4

=

16

5

×

5

=

25

6

×

6

=

36

7

×

7

=

49

8

×

8

=

64

9

×

9

=

81

10

×

10

=

100

So, the square numbers up to 100 are

1,

4,

9,

16,

25,

36,

49,

64,

81,

and

100!

Try some practice problems!

Squares up to 10 x 10

Modeling square numbers

Square numbers up to 100

Try some practice problems!

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