# Lesson 17 Base-ten Diagrams to Represent Division

• Let’s divide using base-ten blocks or diagrams.

## Warm-up Which One Doesn’t Belong: Base-ten Diagrams

Which one doesn’t belong?

## Activity 1 Divide with Diagrams or Blocks

1. Priya draws a base-ten diagram to find the value of . A rectangle represents 10. A small square represents 1.

Use the diagram (or actual blocks) to help Priya complete the division. Explain or show your reasoning.

2. Use this base-ten diagram (or actual blocks) to find the value of .

## Activity 2 Help Noah Get Unstuck

1. This diagram represents 235.

To find , Noah draws the following diagram but then gets stuck.

He says, “There are not enough of the hundreds or the tens pieces to put into 5 groups.”

Explain or show how Noah could find with his diagram.

2. Find the value of . Show your reasoning. Use base-ten diagrams or blocks if you find them helpful.

## Problem 1

Here is 378 represented with base-ten blocks.

Use words, diagrams, or equations to show how to use the base-ten blocks to find the value of .