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Unit: Addition and subtraction within 1000

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Possible mastery points

Skip counting by 100s

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Skip-counting by 100s
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Practice

Skip-counting by 100sGet 5 of 7 questions to level up!

Adding 1s, 10s, and 100s

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Practice

Add 10s and 100s (no regrouping)Get 3 of 4 questions to level up!
Add within 1,000 using place value blocksGet 3 of 4 questions to level up!

Subtracting 1s, 10s, and 100s

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Practice

Subtract 10s and 100s (no regrouping)Get 5 of 7 questions to level up!
Subtract within 1,000 using place value blocksGet 3 of 4 questions to level up!

Quiz 1

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

Strategies for adding 2- and 3-digit numbers

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Practice

Break apart 3-digit addition problemsGet 3 of 4 questions to level up!
Add using groups of 10 and 100Get 3 of 4 questions to level up!
Add on a number lineGet 3 of 4 questions to level up!
Select strategies for adding within 1000Get 3 of 4 questions to level up!

Quiz 2

Level up on the above skills and collect up to 320 Mastery points

Adding up to four 2-digit numbers

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Practice

Adding up to four 2-digit numbersGet 3 of 4 questions to level up!
Adding up to four 2-digit numbers word problemsGet 3 of 4 questions to level up!

Up next for you:

Unit test

Level up on all the skills in this unit and collect up to 1100 Mastery points!

About this unit

Learn to add and subtract two- and three-digit numbers within 1000.