No: not with the standard definitions of "add" and of numerical digits.
327 + 327 = 654
To solve -987 - (-654), you can rewrite it as -987 + 654. When you add these two numbers together, you get -333. The double negative in the original expression cancels out to become a positive number.
770. You can find the mean when you add all the numbers and divide by the amount of numbers there are. 268+ 1258+900+654/4
Well, isn't that a happy little question! If we take 649 and add 5 to it, we get 654. It's just a small adjustment, like adding a touch of sunlight to a painting to make it shine a little brighter.
20 percent of 654 = 654/5 or 130.820% of 654= 20% * 654= 20%/100% * 654= 1308/10= 654/5 or 130.8
27% of 654= 27% * 654= 0.27 * 654= 176.58
22% of 654= 22% * 654= 0.22 * 654= 143.88
97
All the multiples of 654, which are infinite: 654, 1308, 1962, 2616 + 654 . . .
375
45, as a percentage of 654 = 100*45/654 = 6.88%
375