215k views
2 votes
To solve the problem -9 + 18 what is the first step?

a. KCO (keep change fli[p)
b. Subtract 18 - 9
c. Subtract 9 - 18
d. Add 9 + 18

1 Answer

2 votes

Answer:

Explanation:

User Yachi
by
4.8k points