How many nuts did the squirrel find?

This Application Problem is a part of the Lesson 9, Unit 2, Grade 1. This problem uses three addends, revisiting the associative and commutative properties from earlier in this topic. A squirrel found 8 nuts in the morning, 5 nuts in the afternoon, and 2 nuts in the evening. How many nuts did the squirrel find in all? The next day, the squirrel found 3 more nuts in the morning, 1 more in the afternoon, and 1 more in the evening. How many did he collect over the two days?