Percent Problem Solving Techniques

This video tutorial by Kirk Weiler covers a review of percentages, emphasizing their importance in everyday life. It includes practical examples such as salary increases and real-world problems like sales tax and population decline. The lesson introduces a shortcut for calculating percentages using decimals, making it easier to solve percentage problems efficiently.

What does a percent compare?

• Two quantities as a proportional relationship out of a hundred

• Two quantities as a proportional relationship out of a thousand

• The sum of two quantities

• The difference between two quantities

By what percent did Jonathan's salary increase?

• 25%

• 20%

• 18%

• 15%

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CCSS.6.RP.A.3C

Who received a larger dollar increase in salary?

• Cannot be determined

• Both received the same

• Mikayla

• Jonathan

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CCSS.6.NS.C.7A

CCSS.6.NS.C.7B

What was Mikayla's percent increase in salary?

• 25%

• 15%

• 18%

• 20%

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CCSS.6.RP.A.3C

Will a $50 gift card cover the cost of jeans and tax?

• Cannot be determined

• Only if the tax is waived

• No

• Yes

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CCSS.7.EE.B.3

What is the predicted deer population for next year?

• 600

• 532

• 560

• 588

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CCSS.HSF.BF.A.2

What percent of the deer population is predicted to remain?

• 98%

• 95%

• 92%

• 90%

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CCSS.6.RP.A.3C

How do you find 15% of a total using a faster method?

• Multiply the total by 0.15

• Divide the total by 15

• Add 15 to the total

• Subtract 15 from the total

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CCSS.6.RP.A.3C

What is 20% of 85?

• 34

• 25

• 20

• 17

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CCSS.6.RP.A.3C

Which calculation finds 8.5% of 250?

• 8.5 / 250

• 250 - 8.5

• 8.5 + 250

• 0.085 * 250

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CCSS.6.RP.A.3C