Identify the pattern. The given numbers are 1²=1, 2²=4, 3²=9.

The given numbers are $1^2=1$, $2^2=4$, $3^2=9$.

$4^2 = 16$
$5^2 = 25$
$6^2 = 36$
$7^2 = 49$
$8^2 = 64$
$9^2 = 81$
The next six square numbers are $\boxed{16, 25, 36, 49, 64, 81}$.

5. Calculate:

a)

b)

d)

e)

6. Compare these calculations. Fill in $>$; $<$; $=$.

a)

$2^2 = 2 \times 2 = 4$
$2 \times 2 = 4$

$4 = 4$
So, $2^2 \boxed{=} 2 \times 2$.

b)

$5^2 = 5 \times 5 = 25$
$5 \times 2 = 10$

$25 > 10$
So, $5^2 \boxed{>} 5 \times 2$.

d)

$9^2 = 9 \times 9 = 81$
$9 \times 2 = 18$

$81 > 18$
So, $9^2 \boxed{>} 9 \times 2$.

e)

$11 \times 11 = 121$
$11^2 = 11 \times 11 = 121$

$121 = 121$
So, $11 \times 11 \boxed{=} 11^2$.