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3-2 Addition with Regrouping
By Shanyn Hoffman
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Last updated about 4 years ago
3 questions
Add this activity
2
2.NBT.B.7
2.NBT.B.8
4
2.NBT.B.7
2.NBT.B.8
4
2.NBT.B.7
2.NBT.B.8
Question 1
1.
Look at the addition problem. Do we need to regroup to solve correctly? https://talkandcomment.com/p/c4236c0b8173829982721083 (voice note)
Yes
No
Question 2
2.
Look at this addition problem again.
WHY
do we need to regroup?https://talkandcomment.com/p/5b752cb70ce3b552f979ade9 (voice note)
When adding the ones, any number larger than 9 must be regrouped.https://talkandcomment.com/p/6c1df83510cc7bb55e95a4d4 (voice note)
When adding the ones, any number larger than 10 must be regrouped.https://talkandcomment.com/p/47266a095ccae5b49e3b23e9 (voice note)
When adding the tens, any number less than 9 must be regrouped. https://talkandcomment.com/p/b16c13bec86922f2f5bdade3 (voice note)
Question 3
3.
Please add to find the sum. https://talkandcomment.com/p/0df7144bbb12724fe10f1856 (voice note)
11
311
41
31
The number likes the tens place better so we move it to make it happy. https://talkandcomment.com/p/6280b32ed17db274bb297cae (voice note)