This Problem Set is a part of the Lesson 10, Unit 3, Grade 3. In this lesson, students multiply and divide new facts using the distributive property (the "break apart and distribute" strategy) to break a new fact into a sum of two known facts. For example, they multiply 6 × 8 by finding (6 × 5) + (6 × 3) and divide 64 × 8 by finding (40 × 8) + (24 × 8). Along the way, they represent their calculations with arrays and number bonds.