-643.49 + 154.77 = -488.72
Just like normal addition
919
330 + 420 + 140 = 890
The sum answer = 3440
The sum is 1511.
The sum of 7 plus 71 is 77.
The sum of 75 plus 5 is 80.
The sum of 3 plus 4 is 7.
SUM means plus 4+7=11
The sum of 10 plus 8 is 18.
When the sum of a number plus 3 is squared, it is 11 more than the sum of the number plus 2 when squared.
i don't know here is a simple answer WORK IT OUT ON YOUR OWN.
The answer is 255. Simply add the numbers together like you would for two plus two. To check your work, a calculator is the best option.