What is the sum of 3.089 g and 0.074 52 g?

Adding decimals has steps to follow not like the whole number when adding, you can add it straight.
Given: 
3.089 g and 0.074 52 g

The first step arranged the numbers and second lined up the decimal points when writing down and then simply add the numbers that lined up in the decimals points.
     3.089 
+   0.07452
     3 .16352 
so, you can easily get the answer 3.16352 g.