9 - (-10) = 9 + 10 = 19
10
-9 minus +1 is -10.
-9... Use a calculator
10-(-1)=9
-16 minus -9 is -7
-10 minus -10 is 0.
it is -8 because you are putting a positive into a negative number
-9 minus -4 is -5
-10 minus -28 is 18.
negative 9 -9
-1 - (-8) =-1 + 8 = 7
2/9 minus (negative 8/9) = 2/9 + 8/9 = 10/9