Answer:
45
Explanation:
1) First, add 45 and 12 which equals to 57.
2)Then, subtract 12 from 57 which equals to 45.
3) Again, add 45 and 12 which equals to 57.
4) Finally, subtract 12 from 57 which leaves us with 45.
Hope this helps!
5.6m questions
7.3m answers