# Lesson 7 Subtract Your Way

Let’s subtract numbers within 1,000.

## Warm-up Number Talk: Subtract Two-Digit Numbers

Find the value of each expression mentally.

## Activity 1 Strategies to Subtract

Find the value of each difference in any way that makes sense to you. Explain or show your reasoning.

## Activity 2 Base-ten Drawings

## Problem 1

Jada and Han made drawings to show how they used base-ten blocks to find the value of

Jada’s drawing

Han’s drawing

How are their drawings alike? How are they different?

## Problem 2

Here are three expressions, followed by three diagrams. Write each expression next to the diagram that represents it. Then, find the value of the expression.

## Practice Problem

## Problem 1

Find the value of