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Unit 1: Addition, subtraction, and estimation
1,500 possible mastery points
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Quiz
Unit test
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Practice
- Round to nearest 10 or 100 on the number lineGet 5 of 7 questions to level up!
- Round to nearest 10 or 100Get 3 of 4 questions to level up!
- Round to nearest 10 or 100 challengeGet 3 of 4 questions to level up!
Level up on the above skills and collect up to 240 Mastery points
Practice
- Estimate to add multi-digit whole numbersGet 3 of 4 questions to level up!
Learn
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!
Level up on the above skills and collect up to 480 Mastery points
Practice
- Estimate to subtract multi-digit whole numbersGet 3 of 4 questions to level up!
Learn
Practice
- Break apart 3-digit subtraction problemsGet 3 of 4 questions to level up!
- Subtract on a number lineGet 3 of 4 questions to level up!
- Select strategies for subtracting within 1000Get 3 of 4 questions to level up!
Learn
Practice
- Subtract within 1000Get 3 of 4 questions to level up!
Level up on the above skills and collect up to 400 Mastery points
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Level up on all the skills in this unit and collect up to 1,500 Mastery points!