Study sets matching "percentages maths"

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Study sets matching "percentages maths"

Maths - Percentages
Percentage Increases
Percentage Decreases
Percentage Change
Successive percentage changes
(Percentage increase (as decimal ) + 1.0) x Original price
(100 - Percentage decrease as decimal) x Original price
New Price / Old Price = Multiplier... If it's an increase: Mult…
Example... A £100 airfare will increase by 15% next week and 10%…
Percentage Increases
(Percentage increase (as decimal ) + 1.0) x Original price
Percentage Decreases
(100 - Percentage decrease as decimal) x Original price
16 terms
MATHS: Percentages
how to convert a percentage to decimal
how to convert decimals to percentages
how to convert fractions to decimals
how to convert fractions to percentages
multiply the percentage by 0.01
multiply by 100
divide the numerator by denominator
divide the numerator by the denominator and multiply by 100
how to convert a percentage to decimal
multiply the percentage by 0.01
how to convert decimals to percentages
multiply by 100
Maths (percentages)
How do you change a fraction to a perc…
How do you change a decimal to a perce…
How do you change a percentage to a fr…
How do you change a percentage to a de…
You times it by 100
You times it by 100
You divid it by 100
You divid it by 100
How do you change a fraction to a perc…
You times it by 100
How do you change a decimal to a perce…
You times it by 100
Math Percentages
1/2
1/3
2/3
1/4
50%
33.3%
66.6%
25%
1/2
50%
1/3
33.3%
Maths- percentages
25%
50%
60%
75%
1/4
1/2
3/5
3/4
25%
1/4
50%
1/2
12 terms
Maths- percentages
Common factor
Compound interest
Decimal
Denominator
A whole number that divides into two (or more) other numbers…
This arises when interest on an investment is calculated and…
A proportion that uses powers of 10 as place value. In the ex…
The bottom part of a fraction. For ⅝, the denominator is 8, w…
Common factor
A whole number that divides into two (or more) other numbers…
Compound interest
This arises when interest on an investment is calculated and…
53 terms
Math Percentages
1/2
1/3
2/3
1/4
50%
33.3%
66.6%
25%
1/2
50%
1/3
33.3%
8 terms
math- percentages
part/whole = n/100
part= whole x percent
original number to changed number, div…
store price(1 + markup)=selling price
how do you do proportions
how do you do equations
how do you find percent change (ex. 10 to 15= 5/10= .5=50%)
how do you find selling price
part/whole = n/100
how do you do proportions
part= whole x percent
how do you do equations
Math Percentages
1/100
1/50
1/25
1/20
.01, 1%
.02, 2%
.04, 4%
0.5, 5%
1/100
.01, 1%
1/50
.02, 2%
10 terms
Maths percentage
30% of 60
25% of 48
24 out of 30 as a %
45 out of 60 as a %
18
12
80%
75%
30% of 60
18
25% of 48
12
7 terms
math percentages
If Sammy wanted to buy a new shirt for…
Lyla was out to eat with her friends a…
Sydney is out shopping she finds a rea…
Louane was shopping in Paris and found…
14.00
10.38
Yes she will because the grand total is 11.17 and she has 16.…
20.04
If Sammy wanted to buy a new shirt for…
14.00
Lyla was out to eat with her friends a…
10.38
5 terms
Math Percentages
Mrs. Romeo bought a book from Chris' n…
Talbot is selling the new "do all" too…
Arjun walks in smiling because he just…
Shane sells antique shoelaces. He is o…
Find out the answer!!!
Find out the answer!!!
Find out the answer!!!
Find out the answer!!!
Mrs. Romeo bought a book from Chris' n…
Find out the answer!!!
Talbot is selling the new "do all" too…
Find out the answer!!!
Math Percentages
1/2
1/3
1/4
1/5
50%
33.3%
25%
20%
1/2
50%
1/3
33.3%
27 terms
Math Percentages
1/2
1/3
2/3
1/4
.5 50%
33.333% .333
66.666% .666
.25 25%
1/2
.5 50%
1/3
33.333% .333
28 terms
Math Percentages
1/2
1/3
2/3
1/4
.5, 50%
33.333%, .333
66.666%, .666
.25, 25%
1/2
.5, 50%
1/3
33.333%, .333
12 terms
Math percentages
1/5
1/8
1/6
2/5
20%
12 1/2%
16 2/3%
40%
1/5
20%
1/8
12 1/2%
MATHS: Percentages GCSE
How do you find a percentage of a numb…
What is 8% of 40?
What is 160% of 18?
How do you increase a number by a perc…
Divide percentage by 100. Multiply number by the divided perc…
8% / 100 = 0.08... 40 x 0.08 = 3.2
160% / 100 = 1.6... 18 x 1.6 = 28.8
Find new percentage by adding percentage increase to 100%. Di…
How do you find a percentage of a numb…
Divide percentage by 100. Multiply number by the divided perc…
What is 8% of 40?
8% / 100 = 0.08... 40 x 0.08 = 3.2
20 terms
Math Percentages
1/4
1/2
3/4
1/1
25%
50%
75%
100%
1/4
25%
1/2
50%
19 terms
Math Percentages
1/2
1/3
2/3
1/4
50%
33 1/3%
66 2/3%
25%
1/2
50%
1/3
33 1/3%
19 terms
Math Percentages
1/20
1/12
1/10
1/8
0.05, 5%
0.083, 8.3%
0.1, 10%
0.125, 12.5%
1/20
0.05, 5%
1/12
0.083, 8.3%
7 terms
Maths - Compound Percentages + Inverse Percentages + Percentage Change
How do you increase a number by R%?
How do you decrease a number by R%?
If £5000 is in a savings account at an…
How do you express y as a percentage o…
1+(R÷100)
1-(R÷100)
£5000×(1.15)⁵ = £10,100
(y÷z)x100
How do you increase a number by R%?
1+(R÷100)
How do you decrease a number by R%?
1-(R÷100)
6 terms
Maths Percentage
A rate, number, or amount in each hund…
Sometimes, rather than rounding off to…
A fraction represents a part of a whol…
Answers;... 20, 42, 15, 100, 35
What is a percentage?
What is a decimal place?
What is a fraction?
Work out 50% of:... 40, 84, 30, 200, 70
A rate, number, or amount in each hund…
What is a percentage?
Sometimes, rather than rounding off to…
What is a decimal place?
18 terms
Maths - Percentage
Decimal to fraction
Fraction to decimal
Percentage to fraction
Fraction to percentage
Put decimal as a whole number over 100/1000 & cancel
Divide numerator by denominator
Put percentage over 100 and cancel down
X 100
Decimal to fraction
Put decimal as a whole number over 100/1000 & cancel
Fraction to decimal
Divide numerator by denominator
5 terms
Math -Percentages
What is a Percent?
How do you change a decimal into a per…
How do you change a percent into a dec…
Percent Proportion (setup):
-A ratio comparing a number to 100... -A number divided by 100
Multiply by 100
Divide by 100
part/whole = %/100 = TOTAL
What is a Percent?
-A ratio comparing a number to 100... -A number divided by 100
How do you change a decimal into a per…
Multiply by 100
Math: Percentage
23/50
22/100
2/100
10/100
46% (lowest term)
22%
2% (common fractions)
10%
23/50
46% (lowest term)
22/100
22%
16 terms
Math - Percentages
Percentage to Fractions
Fractional Percentage to Fractions
Fraction to Percentage
Percentage to Decimal
Put percentage value over 100, and simplify the fraction. Eg…
Convert to an improper fraction, and multiply fraction denomi…
Multiply the fraction by 100/1, then simplify.
Write decimal as a fraction over 100, and then convert to a d…
Percentage to Fractions
Put percentage value over 100, and simplify the fraction. Eg…
Fractional Percentage to Fractions
Convert to an improper fraction, and multiply fraction denomi…
Math Percentages
Working with Percents (is of) HOW
What is 22% of 350 EXAMPLE
% Increase and Decrease
How to set up Increase and Decrease
%/100 equals is/of
22/100 equals x/350
1 )Figure out if it's In. or De. 2) Find amount of change by…
x/100 equals subtracted amount/original amount
Working with Percents (is of) HOW
%/100 equals is/of
What is 22% of 350 EXAMPLE
22/100 equals x/350
MATH (PERCENTAGE)
PERCENTAGE
converting fractions and decimal to pe…
converting percentage into fractions a…
one quantity as a percentage of another
per hundred/in every 100
FRACTION x 100%... e.g.... 2/5 x 100%
25% = 25/100 -> 1/4 (simplified)... = 0.25
Anna -> 7/20 x 100% = 35%... Emma -> 9/24 x 100% = 37.5%... Emma sa…
PERCENTAGE
per hundred/in every 100
converting fractions and decimal to pe…
FRACTION x 100%... e.g.... 2/5 x 100%
14 terms
Maths Percentage
Percentage
Decimal
Fraction
Conversion
A number out of 100
The number that goes in between two whole numbers
A number out of a great per number
To transform something into a different type of that same thing
Percentage
A number out of 100
Decimal
The number that goes in between two whole numbers
10 terms
math percentage
1/3
2/3
1/5
2/5
0.33333333 = 33.333333%
0.66666666 = 66.666666%
0.2 = 20%
0.4 = 40%
1/3
0.33333333 = 33.333333%
2/3
0.66666666 = 66.666666%
18 terms
Math percentage
1/2
1/3
2/3
1/4
50%
33.33
66.66
25%
1/2
50%
1/3
33.33
Maths - Compound Percentages + Inverse Percentages + Percentage Change
How do you increase a number by R%?
How do you decrease a number by R%?
If £5000 is in a savings account at an…
How do you express y as a percentage o…
1+(R÷100)
1-(R÷100)
£5000×(1.15)⁵ = £10,100
(y÷z)x100
How do you increase a number by R%?
1+(R÷100)
How do you decrease a number by R%?
1-(R÷100)
Maths - Percentages Revision
How do you convert a fraction to a per…
How do you convert a percentage to a f…
How do you convert decimals to percent…
How do you convert percentages to deci…
You multiply the fraction by 100 over 1, but make sure you si…
You put the percentage over 100 and then simplify it.... (eg. 54…
You times the decimal by 100 or move the decimal point 2 plac…
You divide the percentage by 100 or move the decimal point 2…
How do you convert a fraction to a per…
You multiply the fraction by 100 over 1, but make sure you si…
How do you convert a percentage to a f…
You put the percentage over 100 and then simplify it.... (eg. 54…
GCSE Maths: percentages
A out of B
A% of B
% increase/decrease
% change
Fraction x 100
Amount/100 x %
BEFORE AFTER... 100% %
Change/original x 100
A out of B
Fraction x 100
A% of B
Amount/100 x %
10 terms
Maths - decimals and percentages
Round 8.765 to 2 decimal places
8.3 times 5
Round 6.813721 to four decimal places
Round 3.8 to the nearest tens
8.77
41.5
6.8137
4
Round 8.765 to 2 decimal places
8.77
8.3 times 5
41.5
8 terms
GCSE MATHS - PERCENTAGES
A as a % of B
Percentage increase or decrese
Percentage of a quantity
Amounts after a percentage increase
A / B x 100 = %
A - B = x / A x 100 = %
A x B / 100 = unit
A x 1+B = U
A as a % of B
A / B x 100 = %
Percentage increase or decrese
A - B = x / A x 100 = %
Maths~Financial Applications of Percentages
CP
SP
Mark up
Discount
The total cost of making or buying the goods
Cost price+mark up
Amount added to cost price in order to make profit
Decrease in the selling price to attract more buyers
CP
The total cost of making or buying the goods
SP
Cost price+mark up
19 terms
math: percentages to fractions list
10%
30%
40%
50%
1/10
3/10
2/5
1/2
10%
1/10
30%
3/10
10 terms
MATHS- Fractions, decimals and percentages
1/2
1/4
1/5
1/10
0.5
0.25
0.2
0.1
1/2
0.5
1/4
0.25
9 terms
Math: Fractions/percentages
Associative property
Communitive property
Fraction
Numerator
Changing the grouping of numbers will NOT change the value.…
No matter what order the digits are multiplied or added, in t…
part of a whole
the top number in a fraction
Associative property
Changing the grouping of numbers will NOT change the value.…
Communitive property
No matter what order the digits are multiplied or added, in t…
Maths Chapter 2 Percentages
Percent
Estimate
To covert a FRACTION to a PERCENTAGE
To convert a DECIMAL to a PERCENTAGE
100%
An educated guess
Multiply by 100
Multiply by 100 by moving the decimal point two places to the…
Percent
100%
Estimate
An educated guess
Maths Exam Percentages
Changing Percentages to a Fraction:
To Write a number as a percentage you:
Percentages of Quantities
300g of 1000g?
Put it over 100 eg. 30% = 30/100= 3/10
Multiply by 100/1 or 11
To make two quantities into a percentage we make a fraction o…
300/1000 X 100/1 = 30%
Changing Percentages to a Fraction:
Put it over 100 eg. 30% = 30/100= 3/10
To Write a number as a percentage you:
Multiply by 100/1 or 11
Math vocabulary: Percentages
Percent proportion
Percent of change
Percent of decrease
Percent increase
One ratio that compares part of a quantity to the whole quant…
The amount stated as a percent that a number increases or dec…
A percent change describing a decrease in quantity
A percent change describing an increase in quantity
Percent proportion
One ratio that compares part of a quantity to the whole quant…
Percent of change
The amount stated as a percent that a number increases or dec…
5 terms
Maths 1.1 - Percentages - Review
Find a percentage of an amount
Increasing a number by a percentage
Decreasing a number by a percentage
Find a percentage of a fraction
You have to X the <amount> by the <% as a decimal>
You have to X the <number> by the <% +100 then / that by 100>
You have to X the <number> by the <% - 100 the / that by 100>
You have to / the <numerator> by the <denominator> then X 100
Find a percentage of an amount
You have to X the <amount> by the <% as a decimal>
Increasing a number by a percentage
You have to X the <number> by the <% +100 then / that by 100>
5 terms
MATHS // FRACTIONS AND PERCENTAGES
Find the simple interest eg: earn $800…
Increase $5 by 15%
15% discount and has a marked price of…
A car is BOUGHT for $8000, sold for $8…
= 800 x 0.12 x 3... = answer
100-15=85... 85/100 x 5 ... = answer
100-15=85... 85 x 8 = 680... 680/100 =6.8=$6.80
8500-8000=500... 500/8000 x 100 = 6.25%
Find the simple interest eg: earn $800…
= 800 x 0.12 x 3... = answer
Increase $5 by 15%
100-15=85... 85/100 x 5 ... = answer
Maths- percentages equations
Percentage change (profit/loss)
Percentage 'out of'
Compound Interest
Percentages of
actual change/ original amount (x100 for percentages)
two scores over each other x 100
amount x (multiplier) where n is the number of years
Divide number by 100 then x by the percentage you want
Percentage change (profit/loss)
actual change/ original amount (x100 for percentages)
Percentage 'out of'
two scores over each other x 100
Math Fraction and Percentages
0.5
50%
0.75
75%
Fraction 1/2 decimal is...
Fraction 1/2 percentage is...
Fraction 3/4 decimal is...
Fraction 3/4 percentage is...
0.5
Fraction 1/2 decimal is...
50%
Fraction 1/2 percentage is...
48 terms
Maths GCSE (fractions/decimals/percentages)
>
<
>... -
<... -
Greater than
Less than
Greater than or equal to
Less than or equal to
>
Greater than
<
Less than
5 terms
Maths - decimals and percentages
What's 4.564 + 3.62
What's 4.678 X 4
What's 5.46 - 2.35
Round 5.427 to 2 decimals
8.184
18.712
3.11
5.43
What's 4.564 + 3.62
8.184
What's 4.678 X 4
18.712
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