What is an unknown value in a number sentence?

Understanding Unknown Values in Equations

Interactive Video
•
Mathematics
•
3rd - 4th Grade
•
Hard

Thomas White
FREE Resource
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15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A value that is given explicitly
A value that is missing and needs to be found
A value that is always zero
A value that is always negative
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the given number sentence, what is the expression on the left side?
70 plus 20
70 plus 20 plus 10
10 minus the unknown value
90 plus 7
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the expression on the right side of the given number sentence?
70 plus 20 plus 10 minus the unknown value
70 plus 20
10 minus the unknown value
90 plus 7
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the first method, what is the value on the left side that needs to be balanced with the right side?
90
7
20
10
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
According to the first method, what should 7 be equal to for the equation to balance?
7 minus the unknown value
10 minus the unknown value
7 plus the unknown value
10 plus the unknown value
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the unknown value according to the first method?
4
5
3
2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the second method, what is the total value on the left side of the equation?
100
97
90
110
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