Does Henry have the correct amount?

This Application Problem is a part of the Lesson 24, Unit 1, Grade 1. The teacher told Henry to get 8 linking cubes. Henry took 4 blue cubes and 3 red cubes. Does Henry have the correct amount of linking cubes? Use pictures or words to explain your thinking. This problem is designed as a bridge from the previous lesson's focus on common totals on the addition chart.