
Understanding the Cost of the Book Problem
Interactive Video
•
Mathematics
•
5th - 8th Grade
•
Practice Problem
•
Hard
Standards-aligned
Olivia Brooks
FREE Resource
Standards-aligned
Read more
8 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a common mistake when trying to solve the book cost problem?
Assuming the book costs $1.50
Using a variable to represent the cost
Subtracting instead of adding
Multiplying instead of dividing
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the correct approach, what does the variable C represent?
The cost of the book plus $1
The cost of half the book
The total cost of the book
The cost of the book minus $1
Tags
CCSS.8.EE.C.7B
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is the equation set up to solve for the cost of the book?
C = 1 + 0.5C
C = 1 + 0.5
C = 1 - 0.5C
C = 0.5C - 1
Tags
CCSS.8.EE.C.7B
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in solving the equation C = 1 + 0.5C?
Add 0.5C to both sides
Subtract 0.5C from both sides
Multiply both sides by 2
Divide both sides by 0.5
Tags
CCSS.7.EE.B.4A
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
After simplifying the equation, what operation is used to solve for C?
Multiplication
Subtraction
Addition
Division
Tags
CCSS.7.EE.B.4A
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the final cost of the book after solving the equation?
$1.50
$3.00
$2.00
$2.50
Tags
CCSS.6.NS.A.1
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the equivalent operation to dividing by a fraction?
Dividing by the reciprocal
Multiplying by the reciprocal
Subtracting the reciprocal
Adding the reciprocal
Tags
CCSS.6.NS.A.1
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