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The 'mathmastro.com' enables you to learn the mathematical concepts online. You can easily learn basic concepts of mathematics from here. This site will be helpful for your compitative examinations as well as aptitutional examinations. Please, go through it and be master in math.
Face Value and Place value of a digit in a numeral :
Face value:
The face value of digit in numeral is its own value, at whatever place it may be.
Example :
In the numeral 6872, the face value of 2 is 2, face value of 7 is 7, the face value of 8 is 8 and the face value of 6 is 6.
Place value :
In a give n numeral :
Place value of unit digit = (unit digit) X 1,
place value of tens digit = (tens digit) X 10,
place value of hundred's dogot = (hundred's dogot) X 100 and so on.
Example :
In the numeral 70984, we have.
Place value of 4 = (4 X 1) = 4,
place value of 8 = (8 X 10) = 80,
Place value of 9 = (9 X 100) = 900,
Place value of 7 = (7 X 10000) = 70000.
Note :
Place value of 0 in a given numeral is 0, at whtever place it may be.
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Fractions ( 2/3 > 1/5) :
Equivalent Fraction :
:It is fractions which are of equal value but one is a multiple of the other:
5/7 and 20/28 are equivalent fractions.
Equivalent fractions can be identified using the following conditions:
a/b and c/d are equivalent fractions if a X d = b X c .
When two fractions are equivalents we write: a/b =c/d
Example :
3/5 = 12/20 =>(3 X 20) = (5 X 12) = > 60 = 60.
Revise your understanding of fractions. Here you will find exercises about equivalent fractions, simplifying (reducing) fractions, reducing to the Least Common Denominator, Comparing fractions. Add, Subtract, Multiply and divide fractions.Example :
More »»
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Percentage ( % ) :
A percent is really a fraction with a denominator of 100. The percent symbol, % is another way of writing a denominator of 100.
In other words: 60% = 60/100 or 3% = 3/100.
Calculate the % of a given number.
Find 77% of 30 :
77% 0f 30 = ( 77 X 30 ) / 100 = 221 / 100 = 22.1.
Revise your knowledge of percentages. Here you will find exercises on determining percentages (%), percentage increases and decreases and calculating initial capital after a percentage increase or decrease.
More »»
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Fractions ( 2/3 > 1/5) :
Equivalent Fraction :
:It is fractions which are of equal value but one is a multiple of the other:
5/7 and 20/28 are equivalent fractions.
Equivalent fractions can be identified using the following conditions:
a/b and c/d are equivalent fractions if a X d = b X c .
When two fractions are equivalents we write: a/b =c/d
Example :
3/5 = 12/20 =>(3 X 20) = (5 X 12) = > 60 = 60.
Revise your understanding of fractions. Here you will find exercises about equivalent fractions, simplifying (reducing) fractions, reducing to the Least Common Denominator, Comparing fractions. Add, Subtract, Multiply and divide fractions.Example :
More »»
------------------------------------------------------------------------------------------------------------------------------------------------------------------
Percentage ( % ) :
A percent is really a fraction with a denominator of 100. The percent symbol, % is another way of writing a denominator of 100.
In other words: 60% = 60/100 or 3% = 3/100.
Calculate the % of a given number.
Find 77% of 30 :
77% 0f 30 = ( 77 X 30 ) / 100 = 221 / 100 = 22.1.
Revise your knowledge of percentages. Here you will find exercises on determining percentages (%), percentage increases and decreases and calculating initial capital after a percentage increase or decrease.
More »»
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Percentage ( % ) :
A percent is really a fraction with a denominator of 100. The percent symbol, % is another way of writing a denominator of 100.
In other words: 60% = 60/100 or 3% = 3/100.
Calculate the % of a given number.
Find 77% of 30 :
77% 0f 30 = ( 77 X 30 ) / 100 = 221 / 100 = 22.1.
Revise your knowledge of percentages. Here you will find exercises on determining percentages (%), percentage increases and decreases and calculating initial capital after a percentage increase or decrease.
