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Unit: Addition and subtraction within 100
0
Practice
- Skip-count by 5sGet 5 of 7 questions to level up!
- Skip-count by 10sGet 5 of 7 questions to level up!
Learn
Practice
- Add 1 or 10Get 5 of 7 questions to level up!
- Add 1s or 10s (no regrouping)Get 5 of 7 questions to level up!
Learn
Practice
- Subtract 1 or 10Get 5 of 7 questions to level up!
- Subtracting 1s or 10s (no regrouping)Get 5 of 7 questions to level up!
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Practice
- Adding up to four 2-digit numbersGet 3 of 4 questions to level up!
- Break apart 2-digit addition problemsGet 3 of 4 questions to level up!
- Regroup when adding 1-digit numbersGet 5 of 7 questions to level up!
Learn
Practice
- Add 2-digit numbers by making tensGet 3 of 4 questions to level up!
- Add 2-digit numbers by making tens 2Get 3 of 4 questions to level up!
- Select strategies for adding within 100Get 3 of 4 questions to level up!
- Add within 100 using a number lineGet 3 of 4 questions to level up!
- Subtract within 100 using a number lineGet 3 of 4 questions to level up!
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Practice
- Add within 100 using place value blocksGet 3 of 4 questions to level up!
Learn
Practice
- Add and subtract on the number line word problemsGet 3 of 4 questions to level up!
- Addition word problems within 100Get 3 of 4 questions to level up!
- Subtraction word problems within 100Get 3 of 4 questions to level up!
Learn
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!
Practice
- Find the missing number (add and subtract within 100)Get 3 of 4 questions to level up!
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