Addition and subtraction within 20

Progress
Addition within 20
Subtraction within 20
Equal sign
Quiz 1
5 questions
Missing number within 20
Word problems within 20
Quiz 2
5 questions
Word problems with "more" and "fewer"
Repeated addition
Unit test
10 questions

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Take Quiz 1 to identify your areas for growth. We'll recommend lessons for exactly what you need to learn.
Practice
Equal sign
7 questions
Practice
Identify your areas for growth in these lessons:
Identify your areas for growth in these lessons:
Test your understanding of Addition and subtraction within 20 with these 10 questions.
About this unit
Learn to add and subtract numbers that are 20 or less.