Addition and subtraction

Progress
Relate addition and subtraction
Addition within 20
Subtraction within 20
Quiz 1
5 questions
Equal sign
Missing number within 20
Quiz 2
5 questions
Word problems within 20
Word problems with "more" and "fewer"
Quiz 3
5 questions
Adding 1s and 10s
Intro to addition with 2-digit numbers
Quiz 4
5 questions
Unit test
15 questions

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Equal sign
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Test your understanding of Addition and subtraction with these 15 questions.
About this unit
First, we will learn how addition and subtraction relate. Next, we will add and subtract numbers less than or equal to 20 and solve addition and subtraction word problems. Finally, we will begin adding 2-digit numbers.