Chapter 11.2

Adding or taking one up to 10


What You'll Learn

Count objects in groups up to 10 accurately
Identify one more than a given number up to 10
Identify one less than a given number up to 10
Recognize how adding or subtracting one changes a quantity

What You'll Practice

1

Counting animals and objects in visual sets

2

Finding the number that is one more than a given amount

3

Finding the number that is one less than a given amount

Why This Matters

Learning to add or subtract one is your first step into understanding how numbers work together. This skill builds the foundation for all future addition and subtraction, helps you count forward and backward confidently, and prepares you for mental math strategies you'll use every day.

This Unit Includes

Practice exercises

Skills

Counting
Number Sense
Addition
Subtraction
Numbers to 10
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