Use additive inverse to find -492.89 - (-871.78)

To find the difference between -492.89 and -871.78, we can take the sum of -492.89 and the additive inverse of -871.78.

The additive inverse of a number is the opposite of that number. So, the additive inverse of -871.78 is 871.78.

Now we can add -492.89 and 871.78 together:

-492.89 + 871.78 = 378.89

Therefore, -492.89 - (-871.78) = 378.89.

To find the difference between -492.89 and -(-871.78), you can use the concept of additive inverse.

The additive inverse of a number is the number that when added to the original number, gives zero as a result.

To find the additive inverse of a number, just change the sign of the number. So in this case, the additive inverse of -871.78 is 871.78.

Now, to subtract -(-871.78), you can rewrite the expression as: -492.89 + 871.78.

Now you can perform the addition:

-492.89
+ 871.78
__________
= 378.89

Therefore, -492.89 - (-871.78) is equal to 378.89.