2 kg + 3000 g = ?

Problem:

2 kg + 3000 g = ? 

Enter the number corresponding to the answer in grams.

Solution:

1 kg = 1000 g

2 kg = 2000 g 

2 kg + 3000 g = 2000 g + 3000 g = (2000 + 3000) g = 5000 g

Answer: 5000 g