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Unit: Addition and subtraction

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Possible mastery points
Level up on the above skills and collect up to 800 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 800 Mastery points
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Unit test

Level up on all the skills in this unit and collect up to 2000 Mastery points!

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.