1509
258 plus 963 = 1221
Answer = 983
546 + 432 - 78 + 345 = 555
3 + 3 + 4 + 546 + 6767676767 + 9 = 6767677332
115091
The answer is 4787. Simply add the numbers together like you would for two plus two. To check your work, a calculator is the best option.
Syria
963 = CMLXIII
65% of 546= 65% * 546= 0.65 * 546= 354.9
20% of 546= 20% * 546= 0.2 * 546= 109.2
500 + 400 = 900
107