# Lesson 16 Subtract Within 1,000

Let’s subtract in a way that makes sense.

## Warm-up True or False: Equations Based on Place Value

Decide if each statement is true or false. Be prepared to explain your reasoning.

2 hundreds

3 tens 4 ones 2 hundreds 3 tens 14 ones 2 hundreds

3 tens 4 ones 1 hundred 13 tens 4 ones 1 hundred

13 tens 4 ones 1 hundred 12 tens 14 ones

## Activity 1 Jada’s Thinking

## Problem 1

Lin’s diagram:

Jada’s equations:

Discuss how Jada’s equations match Lin’s diagram.

Finish Jada’s work to find the value of

## Problem 2

Jada is thinking about how to find the value of

Jada says she knows a way to count on to find the difference. She showed her thinking using a number line.

Explain Jada’s thinking.

Jada says you can’t decompose to find the value of

because there aren’t any tens. Do you agree with Jada? Use base-ten blocks, diagrams, or other representations to show your thinking.

## Activity 2 Find It Your Way

Find the value of each expression in a way that makes sense to you. Show your thinking. Organize it so it can be followed by others.

## Practice Problem

## Problem 1

Find the value of each difference in a way that makes sense to you. Show your thinking.