1776 the 'high' road and ten keys

This is communication......

7 8 9
4 5 6
1 2 3
x 0 x

789 + 987 = 1776

741 + 147 = 888
147 + 741 = 888
sums..... = 1776

123 + 321 = 444
321 + 123 = 444
123 + 321 = 444
321 + 123 = 444
sums .... = 1776

evenLYodd;
.....12.25....xmas

11 + 33 + 99 + 77 = 220
22 + 66 + 88 + 44 = 220
cc .. i i .. q; .. 1111

55 + 55 + 55 + 55 = 220