Main content

Addition and subtraction

Practice
Add within 20Get 5 of 7 questions to level up!
0/100 points
Add 3 numbersGet 5 of 7 questions to level up!
0/100 points
Practice
Subtract within 20Get 5 of 7 questions to level up!
0/100 points
Level up on the above skills and collect up to 400 Mastery points
Practice
Equal signGet 5 of 7 questions to level up!
0/100 points
Learn
No videos or articles available in this lesson
Practice
0/100 points
Level up on the above skills and collect up to 200 Mastery points
Level up on the above skills and collect up to 400 Mastery points
Level up on the above skills and collect up to 500 Mastery points
Up next for you:

Unit test

Level up on all the skills in this unit and collect up to 1500 Mastery points!

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.