Daniel's Final Percent Post

Percent means out of 100. It is also another name for hundredths and can also be expressed as fractions and or decimals.


4.1 Representing Percents Key Ideas :

Shade squares on a grid of 100 squares called a hundred grid to represent a percent. A completely shaded grid represents 100%. If you shade more than one grid, that represents a percent greater than 100%. To represent a fractional percent between 0% and 1%, you have to shade part of one square. Also, to represent a fractional percent greater than 1% you have to shade squares from the hundred grid to show the whole number, then shade part of a square from the grid to show the fraction.


4.2 Fractions, Decimals and Percents Key Ideas :
Percents can also be written as decimalsor a fractions.

Ex. 1/2 = 0.50 = 50%


4.3 Percent of a Number Key Ideas :
You can use mental math strategies such as doubling, halving, and dividing by 10 to find the percents of some numbers. Write the percent as a decimal and then multiply by the number to calculate the percent of a number.

eg. 12 ½ % of 50 = 0.125x50 = 6.25


4.4 Combining Percents Key Ideas :
Adding percents can be used to solve problems.

Eg. Add combined percent with original number:
25% of 100 = 25. 25 + 100 = 125

Eg. Multiply the number by a single percent greater than 100:
125% of 100
1.25 x 100 = 125


Percents of percents can be used to determine amounts that result from
consecutive percent increases or decreases.

Demvry's Final Percent Post

~ A percent means out of 100 and it's another name for hundreths which can be represented as a decimal or fraction
~Ex. 65% means 65 out of 100 or 65/100 or 0.65

4.1 Representing Percents

Key Ideas
To represent a percent you can use 100 grid charts. One shaded grid that has all the squares shaded in represents 100%. To show a percent that is larger than 100% you shade in more than one grid. To represent a percent between 0% and 1% you shade in a part of one square.

Fractional Percent - A percent that includes a portion of a percent.
Ex. 1/2%, 0.42%, 73/8%, 125 3/4%, 4.5%

4.2 Fractions, Decimals, & Percents

Key Ideas
Fractions, decimals, and percents can be used to represent numbers in various situations.
Percents can be written as fraction as decimals.
Ex. 1/2%=0.5% 0.5%=0.5/100 =0.005
150%=150/100 =1.5 or 11/2
423/4%=42.75% 42.75%=42.75/100 =0.4275

4.3 Percent of a Number

Key Ideas
You can use mental math strageties such as halving, doubling, and dividing by ten to find the percents of some numbers.
To calculate the percent of a number, write the percent as a decimal and then multiply by the number.
Ex.121/2% of 50 = 0.125 x 50 = 6.25
121/2%=12.5 = 0.125

4.4 Combining Percents

Key Ideas
Percents can be combined by adding to solve problems. 5% + 7% = 12%
To calculate the increase in a number,
~You can add the combined percent amount to the original number: 12% of 100 =0.12 x 100 = 12 100+12=120
~You can multiply the original number by a single percent greater than 100
Percents of percents can be used to determine amounts that result from consecutive percent increases or decreases.

Demvry's Percent Review Video


The video is kinda blurry so you might not see it very well.
The ending got cut off due to my computer.

Here's a link to help you understand percents better!
http://www.mathgoodies.com/lessons/toc_vol4.html

The words might be oversized or undersized since it got lagged and became like that. If not ignore this.

Tonie's Final Percent Post

Percent - means out of 100. Example 50/100

4.1 Key Ideas: To represent a percent you can use 100 grids. One shaded grid that has all the squares shaded in represents 100%. To show a percent that is larger than 100% you shade in more than on grid. To represent a percent between 0% and 1% you shade in a part of one square

4.2 Key Ideas: Fractions, decimals, and percents can be used yo represent numbers is various situations. Percents can be written as fractions and decimals.

4.3 Key Ideas: You can use some mental math strategies such as doubling, halving, or dividing by 10 to find percents of some numbers.

4.4 Key Ideas: Percents can be combined by adding to solve problems. You can ass the combined percent ammount to the original number. Percents can be used to determine ammounts that result from consecutive percent increases or decreases. You can multiply the original number by a single percent freater than 100.

Percent Review Video


Percent Review Video
Just incase my video won't show here.^
Check out my Percent Scribe Post(:
Percent Games.

Karen's Percent Review Video

percent means out of 100, it can be represented by a hundred grid, fraction, and a decimal. You can use mental math strategies to find the percent of some numbers. It can also be combined by adding to solve problems and lastly it can be used to determine amounts that result from consecutive percents increases or decreases.

Robin's Percent Sribe Post

Pages 142-143:

3)

a) 300% = 3. 3 x 2000 = 6000

b) 1 + 1/4% = 0.0125. 0.0125 x 60 = 0.75

c) 0.1% = 0.001. 0.001 x 40 = 0.04

4)

a) 20% = 0.2. 0.2 x 60 = 12

b) 250% = 2.5. 2.5 x 400 = 1000

c) 10 + 1/2% = 0.105. 0.105 x 100 = 10.5


10) When water freezes, its volume increases by approximately 10%.

A)By how much does the volume of750 mL of water increase when it freezes?
b) 75mLB)What is the volume of ice created?
825mL

Diana's Percent Scribe post.

3.


A) 300%= 3.3x 2000 = 6000


B)1 + 1/4% = 0.0125


0.0125x60=0.75

C) 0.1% = 0.001

0.001 x 40 = 0.04





4.

A) 20% = 0.2

0.2 x 60 =12

B) 250% =2.5

2.5 x 400 = 1000

C) 10 = 1/2% = 0.105

0.105 x 100 = 10.5





8.


The original price of a jacket was $84.00. A store manager marked the price down by 25.5%. By how much the price reduced ?



The price was reduced by $21.42.

comment if I got anything wrong :)

Tonie's Percent Scribe Post

Pages 142-143 #s 3, 4, and 8

3. a)

c)

4. a)

b)

c)

8. The original price of a jacket was $84.00. A store manager marked the price down by 25.5%. By how much was the price reduced?

The price was reduced by $21.42.

Please. Feel free to correct my work (:

Math pg142-143

3.
a) 300% of 2000 is 6000
b) 1.25% of 60 is 0.75
c) o.1% of 40 is 0.04

4.
a) 20% of 60 is 12
b) 250 of 400 is 1000
c) 10.5% of 100 is 10.5

14.
4% of 100 is the same as 8% of what number?
4% of 100 is the same as 8% of 200

My Scribe was yesterdays questions 1 & 3 b+c .

1. a) 150% of 5$

$5+$2.50=$7.50 .
150% of $5 is $7.50 .

b) 0.1% of 1000

0.1% of 1000 is $1

c) 1 1/2% of $20 000

1 1/2% of $20 000 is $300

3. b) 0.1% of $5000

0.1% of $5000 is $5

c) 2 1/10% of $20000

2 1/10% of $20000 is $500

Here is a link.

Ryan's Percent Homework

Percent Math Homework

A) 160% of $53.27

160÷100=1.6

53.27 x 1.6=

85.232

B) 3/4% of 135

0.75÷100=

0.0075x135=

1.0125

B) 55 8/10% of 500

55.8÷ 100=0.558

0.558x500=

279

275+4=279

55+0.8=55.8

A) 350% of $10

350÷100=3.5

3.5x10=

35

Marilen did the other 2 questions.

Heres a link:

http://www.mathsisfun.com/percentage.html

Angel's Percent Scribe Post

Questions:


1. Mary has a monthly salary of $1200. She spends $280 per month on her food. What percent of her monthly salary does she spend on food?












Mary's monthly salary that she spends on her food is 23%

I got 23.33 by dividing $280 by $12 .
I also rounded 23.33 to 23% .



2. Your restaurant can seat 150 guests. If 6 tables of 6 are seated, what percent of the restaurant seating is full?















24% of the restaurant seating is full.

I got 36 by multiplying 6 tables by 6 that are seated.
I got 4.16 by dividing 150 guests by 36.


3. My new golf club was $139.50 but it's last years model so I got a 60% discount. What will it cost me?













The golf club will cost $55.80.

Here's a video:



Here is a link .

Please inform me if i made any mistakes. (:

Nino's Percent Scribe Post

Homework Book- page 41 questions 5, 6, and 7

5.) Covert all decimal to a percent and a fraction in lowest terms.

a) Decimal: 4.25
Percent: 425% ( 4.25 x 100 = 425% )
Fraction: 4 1/4 ( Lowest term from 425/100 - 4 and 25/100 - 4 and 1/4 )

b) Decimal: 0.845
Percent: 84.5% ( 0.845 x 100 = 84.5% )
Fraction: 845/1000 ( 0.845 x 1000 = 845 )

c) Decimal: 0.0062
Percent: 0.62% ( 0.0062 x 100 = 0.62 )
Fraction: 62/10000 ( 0.0062 x 10000 = 62 )

6.) Convert all percent to a decimal and a fraction

a) Percent: 735%
Decimal: 7.35 ( 735 divided by 100 = 7.35 )
Fraction: 7 7/20 ( 735/100 - 7 35/100 - 7 7/20 )

b) Percent: 16.5%
Decimal: 0.165 ( 16.5 divided by 100 = 0.165 )
Fraction: 165/1000 ( 0.165 x 1000 = 165 )

c) Percent: 0.6%
Decimal: 0.006 ( 0.6 divided by 100 = 0.006 )
Fraction: 6/1000 ( 0.006 x 1000 = 6 )

7.)

Trish's Percent Scribe Post

Homework Book - pages 36-39 , Evens Only.

-PAGE 36

2) It says that you need to represent the percent given on a hundred grid, and this is what I did,

-PAGE 37

4) You need to show the given number as a repeating decimal, and this is what I did,

6) It says that you need to estimate each percent of the number, and this is what I did,

* Sorry if you can't see it*

-PAGE 38

2) I know I was only assigned to do the evens, but for this number I included the odds because I was too LAZY to picture the 2 numbers only.

6) For this number, it says that you need to represent the shaded grid(s) by finding out what percent it is, and this is what I did for each question,

-PAGE 39

8) It says that you need to represent the statement given on the grid provided, and this is what I did,

10) For my last number, it it says that you need to represent 1. 7 on the grid and box provided.

Apparently, the box was so small that I can't handle it, so I just made another box.

Now, here are some videos, games and links I found on the Internet about percent.

Games-

http://www.gamequarium.com/percent.html

http://www.funbrain.com/penguin/index.html

Links-

http://www.mathgoodies.com/lessons/vol4/meaning_percent.html

http://www.mcwdn.org/Decimals/Percents.html

Video- * If you can't see it, then refresh it.*

Okay, I'm done with my Scribe, don't forget to comment and if there's something that I did wrong, inform me with it, okay?
BYEE!

Page 128: Representing Percents

For this scribe, I was assigned to do questions 3, 7, 11 and 13.


3. Shindi commented to a friend that “some percents would be easier to show if we shaded the parts that were not included in the percent.” Explain what she means. Which percents are easier to show using Shindi’s method? Why?

Shindi meant that for some percentages, it would be better to colour in the parts in a 10x10 grid that are not included in the percent because it will be easier to identify the percent.

7. Represent the percent in each statement on a grid.

a) Attendance at the fall fair increased by 3.2% this year.

b) The average mass of a Singapura cat is about 0.13% of the mass of a Siberian tiger.










c) The length of the Yukon River is about 230% of the length of the Fraser River.









11. The land area of Alberta is about 113% of the land area of Saskatchewan. Use hundred grids to show how the land area of Alberta compares with the land area of Saskatchewan.

Saskatchewan = 100%
Alberta = 113%















13.
a) Use a calculator to convert 1/3 to a decimal. How could 1/3% be shown using a hundred grid?

1/3 converted into a decimal is 0.3 repeated.







b) Why are percents involving repeating decimals sometimes difficult to show on a hundred grid?

Percents involving repeating decimals can be difficult because you need to know how to convert a repeated decimal onto a grid. Also, repeating decimals never end.


Here is a link on percents.

The video below helps you to find percentages.