How much is (1+10+100)

How much is (1+10+100)

Q: How much is (1+10+100)

1. 0
2. 111
3. 555
4. 1000

Answer: 111

How much is (4+2)?

How much is (7-2)?

What is (21 x 0)?

How many zeros are there in 1 Lakh?