Use the additive inverse to find −492.89−(−871.78)
To find the sum −492.89 − (−871.78), we can use the additive inverse:
The additive inverse of −871.78 is 871.78, so we can rewrite the expression as:
−492.89 + 871.78.
Therefore, the sum of −492.89 − (−871.78) is 378.89.
Determine the distance between −18.26 and −2.45 on a number line.(1 point)
To find the distance between two numbers on a number line, we subtract the smaller number from the larger number. In this case, we have -18.26 and -2.45.
|-18.26 - (-2.45)| = |-18.26 + 2.45|
|-18.26 + 2.45| = |-15.81|
The absolute value of -15.81 is 15.81.
Therefore, the distance between -18.26 and -2.45 on a number line is 15.81.
Subtract 24−(−15).
To subtract 24 - (-15), we can change the subtraction into addition by using the additive inverse of -15.
The additive inverse of -15 is 15, so the expression becomes:
24 + 15
Therefore, 24 - (-15) is equivalent to 24 + 15, which equals 39.
To find −492.89−(−871.78) using the additive inverse, we can rewrite the expression as -492.89 + 871.78.
Step 1: Perform the addition: -492.89 + 871.78 = 378.89
Therefore, −492.89−(−871.78) equals 378.89.
To find the expression -492.89 - (-871.78) using the additive inverse, we need to change the subtraction of a negative number into addition.
Step 1: Change the subtraction sign to addition and change the sign of the second number.
-492.89 + 871.78
Step 2: Add the two numbers together.
-492.89 + 871.78 = 378.89
Therefore, -492.89 - (-871.78) is equal to 378.89.