Hi answer this pls

Choose the correct letter of the answer.

1. What is the sum of 16 and 24?

A. -40
B. -8
C. 8
D. 40

2. What is the sum when -22 is added to -22?

A. -44
B. -1
C. 0
D. 44

3. What are the addends of the sum is 44?

A. -22 + (23)
B. -10 + (34)
C. 22 + 23
D. 10 + 34

4. Add (-12) + (-5) + (-16)

A. -33
B. -1
C. 1
D. 33

5. -987 added to -1259 gives?

A. -2246
B. -2216
C. -272
D. 272​