Intergers are never fractions or decimals, they are whole numbers, for example 5, 7, 9.
Intergers can also be negtive numbers like -5, -6, -7.
TO subtract negative intergers from negative intergers, u simply add, and keep the negative sign
example) -5 + -5 = -10
When adding a negative interger and a positive interger, subtract
example.) -10 + 5 = -5
(I kept the negative sign since the 10 is the bigger number and it has a negative.)