Rosanne mixed 0.53 grams of salt into a pot of soup she was cooking. Before she served the soup, Rosanne added 0.9 grams of salt. How much salt did Rosanne put into the soup in all?

Answer 1

To find the total amount of salt Rosanne added to the soup, we need to add the two amounts of salt together:

0.53 grams + 0.9 grams = 1.43 grams

So, Rosanne put a total of 1.43 grams of salt into the soup.