# Lesson 8

Solve Problems with Multiplication and Division

### Lesson Purpose

### Lesson Narrative

In the previous lesson, students solved word problems involving multiplicative comparison. In this lesson, they practice solving a wider variety of problems, with a focus on the relationships among multiple quantities in a situation. Students think about how to represent the relationships with one or multiple equations and using multiple operations. They also interpret their solutions and the solutions of others in context, including interpreting remainders in situations that involve division (MP2). Students also have opportunities to make estimates and to assess their reasonableness when solving problems.

If students need additional support with the concepts in this lesson, refer back to Unit 6, Section D in the curriculum materials.

- Engagement

- MLR8

### Learning Goals

Teacher Facing

- Determine if a solution to a word problem is reasonable using mental strategies and estimation.
- Interpret remainders in word problems involving division.
- Solve multi-step word problems using the four operations.

### Student Facing

- Let’s make sense of situations and solve word problems.

### Required Preparation

### Lesson Timeline

Warm-up | 10 min |

Activity 1 | 15 min |

Activity 2 | 20 min |

Lesson Synthesis | 10 min |

Cool-down | 5 min |