Add $1_2 + 11_2 + 111_2 + 1111_2.$ Express your answer in base 2.
Question:
Add $1_2 + 11_2 + 111_2 + 1111_2.$ Express your answer in base 2.
Answer:
Let's think step by step.

user
11010_2
Add $1_2 + 11_2 + 111_2 + 1111_2.$ Express your answer in base 2.
train