
3.1 Finiding Unknowns, Principles, Book 2, 8th
Authored by Maggie Land
Mathematics
8th Grade
CCSS covered
Used 1+ times

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11 questions
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1.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
Finding Unknowns — List the number the question mark is standing for in each equation.
9 - ? = 7
Example Meaning: If we had 9 cookies on a plate, and only 7 are left now, how many were eaten?
Tags
CCSS.1.OA.D.8
2.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
Finding Unknowns — List the number the question mark is standing for in each equation.
1 + ? = 7
Example Meaning: If we’ve finished 1 page of a book, how many more pages do we have left to finish 7 pages total?
Tags
CCSS.1.OA.A.1
3.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
Finding Unknowns — List the number the question mark is standing for in each equation.
6 - ? = 6
Example Meaning: If we start with $6 and end with $6, how much did we spend?
Tags
CCSS.1.OA.D.8
CCSS.1.OA.B.4
4.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
Tags
CCSS.3.OA.A.4
5.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
Finding Unknowns — List the number the question mark is standing for in each equation.
? ÷ 5 = 9
Example Meaning: If we can’t remember how long it took us altogether to complete all 9 problems, but we know we spent 5 minutes on each problem, how long did it take us altogether?
Tags
CCSS.3.OA.B.6
6.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
More Finding Unknowns — List the number x is standing for in each equation.
2 + x = 11
Example Meaning: If we put together 2 flower bouquets for a wedding, how many more bouquets are needed if we need 11 total?
Tags
CCSS.1.OA.B.3
7.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
More Finding Unknowns — List the number x is standing for in each equation.
20 - x = 14
Example Meaning: If we start a trip with $20, how much can we spend if we need to end the trip with $14?
Tags
CCSS.2.OA.A.1
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