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Unit: Addition and subtraction with regrouping

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Possible mastery points

Adding with regrouping

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Practice

Regroup when adding 1-digit numbersGet 5 of 7 questions to level up!
Add 2-digit numbers by making tensGet 3 of 4 questions to level up!
Add within 100 using place value blocksGet 3 of 4 questions to level up!

Subtracting with regrouping

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Subtracting with regrouping (borrowing)
(Opens a modal)

Practice

Subtract within 100 using place value blocksGet 3 of 4 questions to level up!

Addition and subtraction mixed problems

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Missing numbers in addition and subtraction
(Opens a modal)

Practice

Find the missing number (add and subtract within 100)Get 3 of 4 questions to level up!

Quiz 1

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

Word problems within 100

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Practice

Addition word problems within 100Get 3 of 4 questions to level up!
Subtraction word problems within 100Get 3 of 4 questions to level up!

"Fewer" and "More" word problems

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Practice

2-step addition word problems within 100Get 3 of 4 questions to level up!
2-step subtraction word problems within 100Get 3 of 4 questions to level up!

Quiz 2

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

Up next for you:

Unit test

Level up on all the skills in this unit and collect up to 900 Mastery points!