Topic F: Distributive property and problem solving using units of 2–5 and 10

Topic F includes lessons 18-21. "Apply the distributive property to decompose units. Solve two-step word problems involving multiplication and division and assess the reasonableness of answers. Solve two-step word problems involving all four operations and assess the reasonableness of answers." Eureka Math/EngageNY (c) 2015 GreatMinds.org