Answer:
see answers below
Step-by-step explanation:
A 'This statement is always true'
B 'This statement is sometimes true'
C 'This statement is never true'
a) When you add two negative numbers the answer is negative. _A_
e.g. -4 + -1 = -5
b) When you subtract a positive number from a negative
number the answer is negative. _A_
e.g. -5 - (+4) = -9
c) When you subtract a negative number from a positive
number the answer is negative. _C_
e.g. 5- (-2) = 8 always positive, => never negative
d) When you subtract a negative number from a negative
number the answer is negative. _B_
-2 - (-4) = +2
-2 - (-1) = -1