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# Unit 2: Addition and subtraction

## About this unit

In this topic, we will add and subtract whole numbers. The topic starts with 1+1=2 and goes through adding and subtracting within 1000. We will cover regrouping, borrowing, and word problems.

## Addition and subtraction word problems within 10

### Practice

#### Quiz 1

Identify your areas for growth in these lessons:

## Word problems with "more" and "fewer"

### Practice

#### Quiz 2

Identify your areas for growth in these lessons:

## Strategies for adding and subtracting within 100

#### Quiz 3

Identify your areas for growth in these lessons:

## Subtraction within 100

### Practice

#### Quiz 4

Identify your areas for growth in these lessons:

## Strategies for adding 2- and 3-digit numbers

#### Quiz 5

Identify your areas for growth in these lessons:

## Addition and subtraction missing value problems

### Practice

#### Quiz 6

Identify your areas for growth in these lessons:

#### Quiz 7

Identify your areas for growth in this lesson:

#### Unit test

Test your understanding of Addition and subtraction with these %(num)s questions.