Explain the only difference between adding and subtracting decimals and adding and subtracting whole numbers

The only difference between adding and subtracting is that you are only adding a decimal point to a number and they both equal the same thing

2=2.0

location: point 0

step-by-step explanation:

well, -8 to 10 on a number line is 18 spaces.

1/9 of 18 is 2.

so, 4/9 of 18 must be 8.

8 spaces from -8 (a) is 0.

so, 4/9 of the way from -8 to 10 is 0!