How do you simplify #-14 - 21 #?
You can think about this in two ways:
- Using directions on the number line:
A negative number means you are moving to the LEFT, going DOWN the number line.
Altogether this will be
- Negative numbers can also be considered as debts:
You have borrowed money which needs to be repaid.
Read this as "I borrowed $14 and then another $21"
Altogether I have borrowed $35.
You can write this as an ADDITION of two negative numbers: