The answer is 693. Simply add the numbers together arithmetically as you would for the problem two plus two. To check your work, a calculator is the best option.
648 + 219 + 56 = 923
7/8 of 648 is 567.
.45×1440=648
970
45 648 2722
0.1389
36
-45 plus 512 plus 45 plus 56 = 568
It is $648.
It is 8(80b+81) when factored
12 + 23 + 45 + 67 + 16 + 18 + 45 = 226
The sum of these numbers is 563.