G6 - Lesson 6-1 + 6-2

G6

Lesson 6-1 + 6-2

Understand Percent

Relate Fractions, Decimals and Percents

Objectives

• Understand Percent

• Use hundredth grids and number lines to represent percent

• Use equivalent fractions to find percent

• Convert between percents, fractions and decimals

Percent

• The rate that compares a part to a whole. The second term in the rate is always 100.

• Denote: %

Multiple Choice

• 9%

• 90%

• 10%

• 100%

Multiple Choice

Write the percent of the shaded region.

• 4%

• 10%

• 40%

• 100%

Multiple Choice

Write the percent of the shaded region

• 7%

• 10%

• 70%

• 100%

Examine percents and Wholes

Point A is at  $\frac{1}{2}$  of the segment 

•  $\frac{1\ x\ 50}{2\ x\ 50}=\frac{50}{100}=\ 50\%$  

• Point A = 50%

Point B is at  $\frac{1}{4}$  of the segment 

•  $\frac{1\ x\ 25}{4\ x\ 25}=\frac{25}{100}=\ 25\%$  

• Point B = 25%

Multiple Choice

Which point represents 50% on the second line segment.

• B

• C

• D

• none of them

Multiple Choice

Find the percent

• 5%

• 20%

• 1%

• 100%

Multiple Choice

Find the percent

• 3%

• 33%

• 0.33%

• 30%

Multiple Choice

Find the percent

• 55%

• 11%

• 20%

• 0.55%

Multiple Choice

Find the percent of the line segment that point D represents?

• 100%

• 75%

• 50%

• 25%

• 100% = 10 x 10%

• Length of line segment is 4 x 10 = 40 inches

• 100% = 200% : 2

• The length of the segment is 6 : 2 = 3 inches

Multiple Choice

if CD represents 100%, what is the length of a line segment that is 25%?

• 4

• 1

• 16

• 3

Multiple Choice

If AB represents 50%, what is the length of a line segment that is 100%?

• 6

• 1.5

• 60

• 30

Multiple Choice

If AB represents 300%, what is the length of a line segment that is 100%?

• 3

• 1

• 9

• 0.01

Multiple Choice

• 45%

• 50%

• 90%

Multiple Choice

• 63%

• 0.63%

• 6.3%

Multiple Choice

• 80%

• 20%

• 40%

• 50%

Multiple Choice

What percent of the line segment that is 6 inches long?

• 100%

• 75%

• 50%

• 255

Multiple Choice

What percent of the line segment that is 3 inches long?

• 100%

• 75%

• 50%

• 255

Multiple Select

Select all the figures that are shaded to represent 20% of the whole

Multiple Choice

Anna spends 0.45 of her homework time reading. What is 0.45 as percent?

• 0.45%

• 4.5%

• 45%

Multiple Choice

Isabel spends

 $\frac{3}{8}$  of her homework on reading. What is  $\frac{3}{8}$  as percent?

• 0.375%

• 3.75%

• 37.5%

• 375%

Multiple Choice

Write the percent of the shaded region.

• 4%

• 10%

• 40%

• 100%

Percent

• The rate that compares a part to a whole. The second term in the rate is always 100.

• Denote: %