What is −189.987−30.87?
The difference between -189.987 and -30.87 is -159.117.
What is −18.1−5?
The difference between -18.1 and -5 is -13.1.
To calculate -189.987 - 30.87, we subtract the second number from the first number.
Step 1: Write down the numbers.
-189.987
-30.87
Step 2: Align the decimal points.
- 189.987
- 30.87
Step 3: Subtract the numbers vertically, starting from the rightmost digit.
7 - 7 = 0
8 - 8 = 0
9 - 0 = 9
1 - 3 = -2
Step 4: Carry over the negative sign to the leftmost digit.
- 189.987
- 30.87
----------------
-220.857
Therefore, -189.987 - 30.87 equals -220.857.