Solving Percent Problems
Videos to help Grade 6 students solve percent problems.
When given a part and the percent, students find the percent of a quantity and solve problems involving finding the whole.
Lesson Plans and Worksheets for Grade 6
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Common Core For Grade 6
New York State Common Core Math Module 1, Grade 6, Lesson 29
Grade 6, Module 1, Lesson 29
Lesson 29 Outcome
• Students find the percent of a quantity.
• Given a part and the percent, students solve problems involving finding the whole.
Lesson 29 Summary
• Percent problems have three parts: whole, part, percent.• Percentage problems can be solved using models such as ratio tables, tape diagrams, double number line diagrams, and 10 x 10 rids.
Exploratory Challenge 1
Claim: To find 10% of a number all you need to do is move the decimal to the left once.
Use at least one model to solve each problem (e.g., tape diagram, table, double number line diagram, 10x10 grid).
a. Make a prediction. Do you think the claim is true or false? Explain why.b. Determine of 10% of 300.
c. Find 10% 0f 80.
d. Determine 10% of 64.
e. Find 10% of 5.
f. 10% of ____ = 48
g. 10% of ____ = 6
h. Gary read 34 pages of a 340 pages book. What percent did he read?
i. Micah read 16 pages of his book. If this is 10% of the book, how many pages are in the book?
j. Using the solutions to the problems above, what conclusions can you make about the claim?
Exploratory Challenge 2
Claim: If an item is already on sale and then there is another discount taken off the sale price, this is the same as saving the sum of the two discounts from the original price.
Use at least one model to solve each problem (e.g., tape diagram, table, double number line diagram, 10 x 10 grid).
a. Make a prediction. Do you think the claim is true or false? __________ Explain.b. Sam purchased 3 games for $140 after a discount of 30%. What was the original price?
c. If Sam had used a 20% off coupon and opened a frequent shopped discount membership to save 10%, would the games still have a total of $140?
d. Do you agree with the claim? _____ Explain why or why not. Create a new example to help support your claim.
1. Henry has 15 lawns mowed out of a total of 60 lawns. What percent of the lawns does Henry still have to mow?
2. Marissa got an 85% on her math quiz. She had 34 questions right. How many questions were on the quiz?
3. Lucas read of 30% his book containing 480 pages. What page is he going to read next?
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