Understanding Proportions and Cross Multiplication
Interactive Video
•
Mathematics
•
5th - 8th Grade
•
Practice Problem
•
Hard
Standards-aligned
Emma Peterson
FREE Resource
Standards-aligned
Read more
8 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a proportion in mathematics?
Two equal ratios
A multiplication problem
A single fraction
A division problem
Tags
CCSS.7.RP.A.3
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in solving a proportion using cross multiplication?
Add the numerators
Subtract the fractions
Multiply the denominators
Cross multiply the terms
Tags
CCSS.3.OA.A.4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the example where 5 times 7 equals 2 times X, what is the value of X?
14
17.5
7
35
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If X over 10 equals 5 over 9, what is the value of X?
10
9
5.5 repeating
5.5
Tags
CCSS.6.RP.A.3B
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many entrees would be sold if 20 appetizers are sold, given the ratio of 8 entrees to 3 appetizers?
50
45
60
53
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a library, if there are 147 non-fiction books, how many fiction books are there given the ratio of 7 non-fiction to 9 fiction?
189
147
210
63
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the total number of vet technicians if the ratio of vet technicians to veterinarians is 5 to 2 and the total staff is 42?
24
42
30
12
Tags
CCSS.6.RP.A.3B
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