-15 + (-3)
-15 + (-3) = -18
To calculate the sum of two negative numbers, you can follow these steps:
1. Start by writing down the two numbers:
-15
-3
2. Add the two numbers together:
-15 + (-3) = -18
So, the sum of -15 and -3 is -18.
To calculate -15 + (-3), you simply add the two numbers together.
-15 + (-3) = -18
The addition of negative numbers works by using the concept of subtraction. In this case, adding -15 and -3 is equivalent to subtracting 3 from -15.
So, -15 + (-3) is the same as -15 - 3, which equals -18.