What in the World Went Wrong???
Authored by Michele Gonzales
Mathematics
2nd Grade
CCSS covered
Used 9+ times
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6 questions
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1.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Mrs. G added 827 + 92.
She wrote down 800 + 20 + 7 and 9 + 2
What in the World Went Wrong???
She didn't do anything wrong
She should have written 90 + 2 instead of 9 + 2
She should have written 800+20+7 and 90+2
Tags
CCSS.2.NBT.B.7
CCSS.3.NBT.A.2
2.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Mrs. Lambert said that 1,049 + 149 = 1,098
What in the World Went Wrong???
She forgot to add the 100 from "149"
She didn't do anything wrong.
1,049 > 149
Tags
CCSS.2.NBT.B.7
CCSS.3.NBT.A.2
3.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Mrs. Byrd says that you cannot add break apart 1,003 + 78 because there aren't any 100s and 10s in 1,003.
What in the World Went Wrong???
I'm not sure what went wrong because I think she's right.
There aren't any 100s and 10s in 1,003, but you can still break it apart as 100 + 3
1,003 is 1000 + 3. You can break it apart. She needs to go back to the Teacher Table.
Tags
CCSS.2.NBT.B.7
4.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Mrs. Burkhart says the break apart method is so EASY!
She solved the equation
999 + 909 =
900 + 90 + 9 + 99
What in the World Went Wrong???
It looks GREAT to me! Nothing went wrong.
It should have been 900 + 90 + 9 + 900 + 9
It should have been 900 + 90 + 9 + 90 + 9
5.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Mrs. Hanson had to double 138. She broke it apart as:
100 + 30 + 8
What in the World Went Wrong?
She should have broken it apart as 130 + 8 and 130 + 8
She should have broken it apart as 100 + 3 + 8
She should have broken it apart as 100 + 38 and 100 + 38
She should have broken it apart as 100 + 30 + 8 and 100 + 30 + 8
Tags
CCSS.5.NBT.B.5
6.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Mrs. Talbert is confused. She thought she should break apart 1,578 as 1,000 + 500 + 80 + 7
What in the World Went Wrong???
She switched the 8 and 7. It should have been
1,000 + 500 + 70 + 8
It should have been 1,000 + 50 + 7 + 8
It should have been 100 + 50 + 70 + 8
Tags
CCSS.4.NBT.A.2
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