Solving for Part or Percent

When solving a percent problem, how do you find the PART?

• Multiply the percent by the whole.

• Change the percent to a decimal then multiply the decimal by the whole.

• Change the percent to a decimal then multiply the decimal by the part.

70% of WHAT NUMBER is 112?

• 1.6

• 89

• 160

• .89

Am I looking for the PART, WHOLE, or PERCENT:

70% of WHAT NUMBER is 112?

• Whole

• Part

• Percent

AM I looking or the WHOLE, PART, or PERCENT:

20% of 60 is what number?

• Whole

• Part

• Percent

20% of WHAT NUMBER is 18?

• .9

• 90

• 3.6

What are the 2 methods for solving a percent problem?

• Write/solve equation

  divide by 1,000

• Draw double number line (model)

  divide by 1,000

• Write/Solve equation

  use a ratio table

• Write/Solve equation

  Draw double number line (model)

On Tuesday, 620 students attended Greenville Middle School. If 341 students brought lunch to school that day, what PERCENT of students brought there lunch?

• 58%

• 55%

• 2.5%

• 5.5%

In a class of 30 children, 18 of the children have blue eyes. What percentage of the class have blue eyes?

What are we solving for?

• Part

• Percent

• Total

Jordan scores 70% on a test. If there are a total of 40 questions, how many questions did he get correct?

What are we solving for?

• Part

• Percent

• Total

In a packet of 40 Skittles, 12 are red. What percentage of the Skittles are red?

What are we solving for?

• Part

• Percent

• Total