Part 1- how to find key percentss

- 50%

(ex. 50% of 80 is 40.)

- 10%

(ex. 10% of 25 is 2.5)

- 1%

(ex. 100 divided by 100 = 1%)

- 25%

(ex. 25% of 200 = is 50)

ex. 30 percent is 30/100

Part 2 You need to have 3 images showing Representing Percents. You choose the 3 but you could

180%)

12 3/4%)

0.07%)

Part 3)You need to explain how to convert from Decimals to Percents to Fractions. Choose 3 sets

24%)

You would have to divide the number by 100 to get the decimal. To get the percent you would have to get the decimal number and multipy that by 100. to find the fraction you would have to look at the last digit of the number to see what the place value is to know what your denominator is.

24 divided by 100= 0.24

0.24x100=24%

0.2

7/10)

to find the the decimal you have to divide your number (7/10) to get 0.7 . to find the fraction look at the last number to see what place value its in so 0.

0.024

to find the percent of this number you would have to multiply 0.024 by 100 to get the percent

0.024x100=2.4

to find the fraction you would have to look at the last digit to see what place it is

0.02

part 4. Percent of a number is the next part of this exercise. Show how you could solve the following using mental math and a calculator.

20%of 60

you would have to divide by 10

10%=6

10%=6

=12

0.1% of 40

to find 1% of a number you would have to divide by 100 but if your looking for 0.1% of a number you would have to divide by 1000

40 divided by 100= 0.40

0.40 divided by 10=0.04

250% of 400

Mental math

100%=400

100%=400

50%=200

400+400+200= 1000

Calculator:

400 divided by 100=4

4x250=1000

part5

What is the sale price at each store? Which is a better buy?

Explain your thinking.

Store A: $350.99 is the original price and is 50% off one day only.

Store B: $375.00 is the original price and is 25% off one day followed by 25% off the reduced price the second day.
Store A -

day one

350.99÷2=175.50

Sale Price at store A is $175.50

Store B -

Day One,

375÷100

=3.75 x 25

=93.75

$375 - $93.75

= $281.25

Day Two,

281.25÷100

=2.81 x 25

=70.25

$281.25 - $70.25

=$211

video link

http://www.youtube.com/watch?v=Im0VnXfYSns

- you also have to define what percent mean

ex. 30 percent is 30/100

Part 2 You need to have 3 images showing Representing Percents. You choose the 3 but you could

180%)

12 3/4%)

0.07%)

Part 3)You need to explain how to convert from Decimals to Percents to Fractions. Choose 3 sets

24%)

You would have to divide the number by 100 to get the decimal. To get the percent you would have to get the decimal number and multipy that by 100. to find the fraction you would have to look at the last digit of the number to see what the place value is to know what your denominator is.

24 divided by 100= 0.24

0.24x100=24%

0.2

__4__==24/1007/10)

to find the the decimal you have to divide your number (7/10) to get 0.7 . to find the fraction look at the last number to see what place value its in so 0.

__7__. the 7 is in the 10s value so its 7/10. to find the percent you have to multipyl the decimal by 100 to get the percent. 0.7x100=70%0.024

to find the percent of this number you would have to multiply 0.024 by 100 to get the percent

0.024x100=2.4

to find the fraction you would have to look at the last digit to see what place it is

0.02

__4__= 24/1000part 4. Percent of a number is the next part of this exercise. Show how you could solve the following using mental math and a calculator.

20%of 60

you would have to divide by 10

10%=6

10%=6

=12

0.1% of 40

to find 1% of a number you would have to divide by 100 but if your looking for 0.1% of a number you would have to divide by 1000

40 divided by 100= 0.40

0.40 divided by 10=0.04

250% of 400

Mental math

100%=400

100%=400

50%=200

400+400+200= 1000

Calculator:

400 divided by 100=4

4x250=1000

part5

__Discount__- The discount is how much you take away from your original price and what you save.

__Sale Price__- The sale price is a new price on one item. So the original price has changed to a lower price, which is also the sale price. For example the original price was $75 and now it's $59

__Total Prices with Taxes__- The total prices are what you pay for after you have calculated how much you need to pay, then the taxes are the percentages that you have to pay for additional money, which usually depends on where you live. After you add the total prices and taxes together, that's how much you need to pay.

__Textbook Question__-

What is the sale price at each store? Which is a better buy?

Explain your thinking.

Store A: $350.99 is the original price and is 50% off one day only.

Store B: $375.00 is the original price and is 25% off one day followed by 25% off the reduced price the second day.

day one

350.99÷2=175.50

Sale Price at store A is $175.50

Store B -

Day One,

375÷100

=3.75 x 25

=93.75

$375 - $93.75

= $281.25

Day Two,

281.25÷100

=2.81 x 25

=70.25

$281.25 - $70.25

=$211

video link

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