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Understanding Proportions and Cross Products

Understanding Proportions and Cross Products

Assessment

Interactive Video

•

Mathematics

•

6th - 8th Grade

•

Practice Problem

•

Hard

•
CCSS
6.RP.A.1, RI.6.2, 6.RP.A.3A

+8

Standards-aligned

Created by

Liam Anderson

FREE Resource

Standards-aligned

CCSS.6.RP.A.1
,
CCSS.RI.6.2
,
CCSS.6.RP.A.3A
CCSS.5.NBT.B.5
,
CCSS.HSN.CN.A.2
,
CCSS.6.RP.A.2
,
CCSS.RI.7.2
,
CCSS.RI.8.2
,
CCSS.RL.8.2
,
CCSS.RL.7.2
,
CCSS.RL.6.2
,
The video tutorial explains how to solve proportions using cross products. Leonard the Leprechaun needs to sell his pot of gold, which contains shamrocks and coins in a 3:2 ratio. Given 36 coins, the tutorial demonstrates setting up ratios and using cross products to find the total number of items in the pot, which is 90. The process involves establishing equivalent ratios and solving for the unknown variable.

Read more

7 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the ratio of Shamrocks to Coins in Leonard's pot?

1 to 1

3 to 2

5 to 2

2 to 3

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If there are 36 coins, what variable is used to represent the total number of items in the pot?

s

c

i

t

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How is the ratio of Coins to Total Items expressed as a fraction?

5/3

2/5

3/5

5/2

Tags

CCSS.6.RP.A.3A

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the equivalent ratio of Coins to Total Items?

2/3

3/2

5/2

2/5

Tags

CCSS.5.NBT.B.5

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the result of multiplying 36 by 5 in the cross product method?

210

180

150

200

Tags

CCSS.HSN.CN.A.2

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the final value of 'i' after solving the equation?

80

85

90

95

Tags

CCSS.RI.6.2

CCSS.RI.7.2

CCSS.RI.8.2

CCSS.RL.7.2

CCSS.RL.8.2

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does Leonard plan to do after selling his pot of gold?

Invest in stocks

Save the money

Buy more green

Buy more gold

Tags

CCSS.RI.6.2

CCSS.RI.7.2

CCSS.RI.8.2

CCSS.RL.6.2

CCSS.RL.8.2

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