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Unit: Addition and subtraction

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Level up on the above skills and collect up to 400 Mastery points

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Practice

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
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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.