Helen the hippo and her friends are preparing for thanksgiving at Helen's house. Helen baked 41 chocolate chip cookies yesterday and 21 raisin cookies and 38 chocolate chip cookies this morning. How many chocolate chip cookies did Helen bake?
Helen baked 41 chocolate chip cookies yesterday. 
This morning, she baked 21 raisin cookies and 38 chocolate chip cookies. 

We can see that she baked a total of 59 cookies this morning. However, we are only interested in the number of chocolate chip cookies she baked. 

We can see that she baked 38 chocolate chip cookies this morning. Therefore, the total number of chocolate chip cookies she baked is 41 + 38 = 79.