Rose May's Percent Post

Welcome to my percent post!

Part 1 - Describe how to find percents.

• 50% = Take the whole and divide by 2.

• 10% = Take the whole and divide by 10.

• 1% = Take the whole and divide by 1.

• 25% = Take the whole and divide by 4.

Percent: A percent is out of 100, and is also another way of saying hundredths.


Part 2 - Representing Percents.

• 180% =

• 12 3/4% =

• 0.7% =

Part 3 - Converting Decimals to Percents and to Fractions.

• 26%

Decimal = To find the decimal, take the whole and divide it by 100 to get your decimal.
26 ÷ 100 = 0.26
Fraction = To find the fraction, find the place value of the decimal to get your denominator and to find the numerator remove the decimal.
0.26 
26/100

• 7/10

Decimal = To find the decimal, divide the numerator by the denominator.
7 ÷ 10 = 0.7
Percent = To find the percent, take the decimal and multiply that by 100.
0.7 x 100 = 70%

• 0.024

Percent = To find the percent, take the decimal and multiply it by 100.
0.024  x 100 = 2.4%
Fraction = To find the fraction, find the place value of the percent and that becomes your denominator and to find the numerator remove the decimal.
2.4%
24/1000


Part 4 - Percents of a Number.

• 20% of 60

Mental Math -
10% = 6
10% = 6 
          12
Calculator - 
60 ÷ 100 = 0.6
0.6 x 20 = 12

• 0.1% of 40

Mental Math - 
1% = 0.4
0.1% = 0.04

Calculator - 
40 ÷ 100 = 0.4
0.4 x 10 = 0.04

• 250% of 400

Mental Math
100% = 400
100% = 400
50% = 200 
           1000
Calculator - 
40 ÷ 100 = 4
4 x 250 = 1000


Part 5 - Combining Percents.

Discount - Discount is the amount you subtract from its original value.

Sale Price - Sale price is a price that is lower than what the regular price was before.

Total Price with Taxes - Total Price with Taxes is the final price for an item that you pay extra for.

Question:
What is the final sale price at each store? Which is a better buy?
Store A: 50% off one day only
Store B: 25% off one day followed by 25% off the reduced price the second day 

Price: $260.00

Store A:
Day 1:
$260 ÷ 100 = 2.6 
2.6 x 50 = $130.00

Store B:
Day 1-
$260 ÷ 100 = 2.6
2.6 x 25 = 65
$260 - 65 = $195.00
Day 2-
$195 ÷ 100 = 1.95      
1.95 x 25 = $48.75
$195 - $48.75 = $146.25

Store A would be the better buy because you pay less more money than Store B.

That is my percent post!