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)
Twenty squared, written as (20^2), means multiplying twenty by itself: (20 \times 20). In expanded form, this can be expressed as (20 + 20 + 20 + 20 + 20 + 20 + 20 + 20 + 20 + 20 + 20 + 20 + 20 + 20 + 20 + 20 + 20 + 20 + 20 + 20), which totals to 400. Thus, (20^2 = 400).
7x7x7
20^2 = 400 = (4 x 100) + (0 x 10) + (0 x 1)
20x20
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
20 x 20.400
16x16
7x7x7
202 = 400400 in expanded notation is: (4 x 100) + (0 x 10) + (0 x 1)
Sure thing, honey. 18 squared is 324. In expanded form, it would be 18 x 18, which equals 324. So there you have it, 18 squared in all its expanded glory.
7X7
11x11
5 squared = 5 x 5 = 25