5
90364
400
400
20x20x20x20
20×20×20×20
20x20
use a caculator and ask your teacher what expanded form is? aha , but number form it is, 4.4721359 OR its longer then that :}
20 squared = 20 x 20 = 400 400 in expanded form using exponents = (4 x 10^2) + (0 x 10^1) + (0 x 10^0)
20 squared = 400 = (4 x 100) + (0 x 10) + (0 x 1)
352 = 1225 = 1000 + 200 + 20 + 5
16x16
7x7x7
202 = 400400 in expanded notation is: (4 x 100) + (0 x 10) + (0 x 1)
7X7
11x11
It is 324.
19 squared = 19 x 19 = 361