Algebra 1 2-10 Complete Lesson: Change Expressed as a Percent
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5 (1 rating)
by Matthew Richardson
| 26 Questions
Note from the author:
A complete formative lesson with embedded slideshow, mini lecture screencasts, checks for understanding, practice items, mixed review, and reflection. I create these assignments to supplement each lesson of Pearson's Common Core Edition Algebra 1, Algebra 2, and Geometry courses. See also mathquest.net and twitter.com/mathquestEDU.
The outlined content above was added from outside of Formative.
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2
1
10 pts
Solve It! Two stores advertised sales on their websites, as shown. Before the sale, each sweater cost \$35. Which store offers the better deal?
The store with the ad on the left.
The store with the ad on the right.
2
10 pts
Explain how you know.
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4
10 pts
Problem 1 Got It?
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B
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D
5
10 pts
Problem 2 Got It? In one year, the toll for passenger cars to use a tunnel rose from \$3 to \$3.50. What is the percent increase?
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6
10 pts
Problem 3 Got It?
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B
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D
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7
10 pts
Problem 4 Got It?
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B
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D
8
8
10 pts
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B
C
D
9
9
10 pts
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B
C
D
10
10
10 pts
A
B
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D
11
11
10 pts
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B
C
D
12
5 pts
Vocabulary: Determine whether the situation involves a percent increase or a percent decrease.

A hat that originally costs \$12 sold for \$9.50.
Percent decrease
Percent increase
13
5 pts
Vocabulary: Determine whether the situation involves a percent increase or a percent decrease.

You buy a DVD for \$10 and sell it for \$8.
Percent increase
Percent decrease
14
5 pts
Vocabulary: Determine whether the situation involves a percent increase or a percent decrease.

A store buys glasses wholesale for \$2 per class. The store sells them for \$4.50
Percent increase
Percent decrease
15
10 pts
Reasoning: What is the greatest possible error of a measurement taken to the nearest tenth of a meter? Hint: Consider how many centimeters are in one tenth of a meter.
10 cm
5 cm
0.1 cm
1 cm
16
10 pts
Writing: How is calculating percent increase different from calculating percent decrease?
17
10 pts
Review Lesson 2-9: What percent of 12 is 9?
Enter your response in the following format: 4%
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10 pts
Review Lesson 2-9: What is 35% of 185?
Enter only a number. Use decimal form, if necessary.
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10 pts
Review Lesson 1-3: Graph the numbers on the same number line.

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10 pts
Review Lesson 1-3: Drag the numbers to sort them from least to greatest.
The top should represent the least, the bottom the greatest.
1. -3
2. 1/2
3. 2
4. -2.8
21
10 pts
Vocabulary Review: Match each coin with the percent of a dollar it represents.
• penny
• quarter
• nickel
• dime
• 50-cent piece
• 5%
• 10%
• 1%
• 50%
• 25%
22
5 pts
Describe the change as an increase or decrease. 72 to 84
Increase
Decrease
23
5 pts
Describe the change as an increase or decrease. 25 to 16
Decrease
Increase
24
5 pts
Describe the change as an increase or decrease. \$.99 to \$1.02
Decrease
Increase
25
100 pts
Notes: Take a clear picture or screenshot of your Cornell notes for this lesson. Upload it to the canvas. Zoom and pan as needed.