Fractions Xiii
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Transcript of Fractions Xiii
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Percent IIPercent II
by Monica Yuskaitis
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DefinitionDefinition
Percent can be defined as “of one hundred.”
100of
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20 % Means20 % Means20 parts out of 100 or 20 hundredths.
100999897969594939291
90898887868584838281
80797877767574737271
70696867666564636261
60595857565554535251
50494847464544434241
40393837363534333231
30292827262524232221
20191817161514131211
10987654321
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Percents Have Equivalents in Percents Have Equivalents in Decimals and FractionsDecimals and Fractions
20% .20 20100
15= = =
Decimal FractionFraction
SimplifiedPercent
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How to Find the Percent of a How to Find the Percent of a Whole NumberWhole Number
The first thing to remember is “of” means multiply in mathematics.
of = x
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How to Find the Percent of a How to Find the Percent of a Whole NumberWhole Number
Step 1 - When you see a percent problem you know when you read “of” in the problem you multiply.
25% of 200x
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How to Find the Percent of a How to Find the Percent of a Whole NumberWhole Number
Step 2 – Change your percent to a decimal and then move it two places to the left.
25% x 200..
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How to Find the Percent of a How to Find the Percent of a Whole NumberWhole Number
Step 3 – Multiply just like a regular decimal multiplication problem.
200x .251000
+4005000
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How to Find the Percent of a How to Find the Percent of a Whole NumberWhole Number
Step 4 – Place the decimal point 2 places to the left in your answer.
200x .251000
+4005000.
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What is the percent of this number?What is the percent of this number?
820x .20
000+164016400.
20 % of 820.. x
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What is the percent of this number?What is the percent of this number?
725x .40
000+290029000.
40 % of 725.. x21
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What is the percent of this number?What is the percent of this number?
692x .60
000+415221520.
60 % of 692.. x15
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