Question

1.If a and b are any two real numbers, explain how you calculate the difference a − b. Be sure to include the following in your explanation:
(a) A description of the relationship between addition and subtraction
(b) How you can use a number line to help with the calculation
(c) How you can determine the sign of the result
Answer:

Answer 1

i think it is b

Answer 2

omg ^

Answer 3

what?

Answer 4

from my understanding you can just plug in any two numbers for a and b and solve it