tool tip
UNIT 3
CHAPTER 9
Lesson 9-3
Go to page
Table of Contents
CHAPTER 9 ADDITION STRATEGIES
Lesson 9-3 Estimate Sums
Estimate the sum.
Add to check.
6.
7.
more than 10
less than 10
8.
more than 10
less than 10
9.
more than 7
less than 7
10.
Add 9 + 3. Sam counted on like this.
Why is Sam wrong? Make it right.
Your child estimated sums.
Activity:
Write 8 + 2. Have your child estimate if the sum will be more than 8 or less than 8.
Copyright © The McGraw-Hill Companies, Inc. All rights reserved.
Glossary
Book Resources
Index
Activity
Games
Images
Photos
Sample Lessons
Videos
Math Tool Chest
CoinToss
Counters
Fractions
Functions
Geometry
Graph
Money
PlaceValue
Spinner
Table
TumbleDrum