Use the additive inverse to find −492.89−(−871.78).(1 point)
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To find the sum of two negative numbers, we can use the additive inverse. The additive inverse of a number is the number that, when added to the original number, equals zero.
In this case, to find -492.89 - (-871.78), we can rewrite the expression as -492.89 + 871.78 and find the sum using the additive inverse.
-492.89 + 871.78 = ????
To subtract a negative number, we can rewrite the expression as a sum and use the inverse operation.
-492.89 - (-871.78) = -492.89 + 871.78
Now, using the additive inverse, we can rewrite the sum as a difference:
= -492.89 + (-871.78)
Using the associative property of addition, we can group the two negative numbers:
= (-492.89 + (-871.78))
Next, we can add the two negative numbers together:
= -1364.67
Therefore, -492.89 - (-871.78) = -1364.67.
To find the additive inverse of a number, you change its sign.
The additive inverse of -492.89 is 492.89.
To find -492.89 - (-871.78), we can rewrite it as -492.89 + 871.78.
Now, we can add the numbers together:
-492.89 + 871.78 = 378.89.
Therefore, -492.89 - (-871.78) equals 378.89.