This Application Problem is a part of the Lesson 25, Unit 2, Grade 1. Micah had 16 trucks and lost 9 of them. Charles had 1 truck and received 6 more trucks from his mother. Who has more trucks, Micah or Charles? Students apply their prior understanding of take from with result unknown and add to with result unknown problems as they solve this two-part problem. This provides a context for exploring today's objective of further understanding the meaning of the equal sign by pairing equivalent expressions and constructing true number sentences.