Tuesday, 12 June 2012

Numbers for Kids

Mathematics is the branch of study of science which deals with the number, quantity and space. For kids mathematics is a tough subject to understand. There is a lot of confusion with the numbers for kids. In mathematics there are certain rules that you have to follow while you are learning or practicing with numbers. Basically, kids don’t understand the rule and faces a lot of problems. For kids it is necessary to make them understand the basic rules or numbers in mathematics. Mathematics helps in our day to day life, so it is necessary to understand. Here we will deal with some of the basic numbers in mathematics:
Integer number: it is defined as a whole number. There are two types of integers in mathematics i.e. positive and negative integers. Positive integer starts from 0, 1, 2, 3…… and negative integer starts from
-1, -2, -3 ….
Even number: it is defined as a number divisible by 2 i.e. 2, 4, 6, 8, 10…..
Odd number: it is defined as a whole number, having one left over as remainder when divided by 2 i.e. 1, 3, 5, 7…….
Natural number: it is defined as the positive integer i.e. 1, 2, 3…… and sometimes zero as well.
Prime number: it is defined as a number divisible only by itself one such as (2, 3, 5, 7, 11).
Composite number: it is defined as the product of two or more factors greater than unity, not prime. Even numbers are composite number.
Factorial number: it is defined as the product of an integer and all the integers below it i.e. factorial four means 4 x 3 x 2 x 1 = 24.
 At last numbers for kids is very important to understand. What is Mean? The Answer to this question is well described in west Bengal board of secondary education syllabus.

Thursday, 7 June 2012

multiplying decimals

We say that the decimal numbers are the numbers which can be expressed in the form of whole part and the decimal part. So we say  the difference  between the place  value of  the whole part and the decimal part is as follows :  Place value of the whole part is  written as H T O and the place value after decimal is written as tenth ( 1/10),  hundredth ( 1/100), thousandth ( 1/1000) etc.
Now we will learn about Multiplying Decimals. When we start with Multiplying Decimals with  a whole number, then we will forget the decimal point from the number and then multiply the  two numbers as simple numbers. After this we will  check how many digits are there in the  decimal  part and then we leave that number of places from the right side and place the decimal point  in the product of the two numbers and get the result.
 In case a decimal number is multiplied by 10, the decimal will shift to one place right and we get the result. In case of Multiplying Decimals with 100, the decimal point shift to the right by 2 places.  In the same way, if the decimal number is multiplied by 1 / 10, then the decimal point shifts to left by one place and we get the result of multiplication of a decimal number by 1/10.
Now we look at multiplying a decimal number with a decimal number. For this we  simply multiply the two numbers without considering a decimal and then place the decimal point at the place which counts the total decimal places of the two numbers. To know more about the Derivatives of Trig Functions we can take online help of the math tutors. CBSE Imp Questions are also available online on the CBSE site, which help the students to prepare for their exams. IN the next session we will discuss about How to Add Binary Numbers.

How to Add Binary Numbers

Word binary stand for 2. So we say that the Binary numbers are the numbers which  represent 0 and 1. They are used to represent the electric signals on form of ON and OFF. Let us see the rules of  binary addition. According to Binary Addition, we have :
 0 + 0 = 0
1 + 0 = 1
0 + 1 = 1
1 + 1  = 1 0
1 + 1 + 1 = 1 1
Looking at the rules given above, we proceed to solve the following  addition problems of binary numbers :
   1 0 1  + 1 0 can be written as :
  1  0   1
  +  1   0
1    1     1  Ans.
 Now let us check that the above addition is correct or not :
 1 0 1 =   4 + 0 + 1 = 5
 1 0  = 2 + 0  = 2
 We observe that  5 + 2 = 7
 Let us see that the sum 1  1  1    represent the   decimal value 7 or not .
 1 1 1 = 4 + 2 + 1 = 7 Ans.
In the same way   we can add three  binary numbers too.  Let us try for  3 numbers
 To Add 1 0 0  + 1 0 1  + 1 1
 We write it as follows :
  1   0    0
1     0    1
+    1     1
1  1   0   0
 We will convert it to decimal and check the addition:
1 0 0 = 4 + 0 + 0 = 4
1 0 1 = 4 + 0 + 1 = 5
  1 + 1 =  2 + 1 = 3
 1 1 0  0 =  8 + 4 + 0 + 0 = 12, which is represented by  4 + 5 + 3 =12


 We can learn about  Probability Worksheets by  online math tutors.  We have online CBSE sample papers to understand about the pattern of question papers in different subjects and to get the idea about the important questions and in the next session we will discuss about multiplying decimals

Tuesday, 5 June 2012

How to solve Composite Functions

 In today's session we are going to discuss about How to solve Composite Functions, In mathematics we are familiar with the functions, they are the relations that relates the set of inputs with the set of outputs and have a property that denotes that every input have at least one output. So in this blog we are going to discuss the composite functions. Composite functions are the function in which one's function output is a input of another function. This can be understand easily by the following way: - → f() → g() →
Where f() and g() are the functions and the arrow ( → ) denotes that the result of function f() is going into the function g() and so on. Function composition symbol is the small circle now the above function can be written as g ∘ f (x) that means g(f(x)). Here the output of f(x) becoming the input of g(x). x means an input.
In simple words composite function are the combinations of function where we get the answer of first function and send it into the second function.
Let's take an example to understand more about the composite function. Here are two simple functions, which we will mark as f and g:
f(x) = 3x + 7 g(x) = 4x2
A composite function looks like this: f ∘ g (x).
f ∘ g(x) means f(g(x)), that means first we have to work on g(x), and then plug that answer into f.
Let's find f ∘ g(7)
That means find f (g(7))
First work on g(7).
Where g(x) = 4x2, then g(7) = 4(7)2 = 4(49) = 196
Now we have to find f(149)
f(x) = 3x + 7 so f(149) = 3(149) + 7 = 454
So f g(7) = 454
Money worksheets are helpful for the children to identify and count the different types of money of various countries. To get more information about ICSE textbooks for class 9 visit Online portals which will help you to get proper idea about the syllabus and in next session we will discuss about How to Add Binary Numbers.

Saturday, 2 June 2012

Algebraic Expression

Expressions in Mathematics means numbers combined with the mathematical operations, viz.,+,-,* and / .For example: 2*8, 6/15, 3+5, 7–2 are mathematical expressions.
Now, since algebra involves the use of letters of English alphabets with numbers as values; so Algebraic Expression means that the values represented by letters as well as numbers are brought together with the help of different mathematical operators. e.g., g + ½ v,5–2t,6y+8, d/t are few algebraic expressions.
Let us learn to understand the given algebraic expressions. In algebraic expressions, add, subtract & divide are represented in their usual form with the help of symbols they add denoted by; i.e.,+,-, / are used for add, subtract, divide respectively; but for multiplication, we should that if a variable is to be multiplied by  another  variable or even a number, the multiplication sign is omitted in between them, e.g., to multiply 3 & s, we write 3s or for p*q, we write pq; similarly,7xy means 7*x*y.
Next, we must know how to write Algebraic Expression. Before starting writing algebraic expressions, we must recall the terms associated with the four mathematical operations. Addition means add, sum, increase, more than, etc. Subtraction means less, reduced, difference, decrease, etc. Multiply means times, product & divide also means quotient, equally distributed, division.
We need to read the statement carefully, especially when it is related to subtraction or division because we know that addition & multiplication are commutative as well as associative, i.e., the sequence of numbers to be added or multiplied does not make a difference in both of them. But it does make a lot of difference in subtraction & division. e.g., 3 subtracted from the product of 7&p. We will read the statement in pieces. 3 subtracted from means we have to subtract 3 , thus -3 for it; the product of 7&p means 7p. Thus, the expression is 7p-3.Whereas subtract 7p from 3 means 3-7p.Also we should be particular about putting brackets, as 3x subtracted from the sum of 8&y means addition is to be done first. Thus, the expression will be (8+y)-3x.
For help on gcf calculator & ICSE books for class 9 visit different sites online.

Saturday, 26 May 2012

algebra calculator

In the previous post we have discussed about data analysis worksheets and In today's session we are going to discuss about Algebra which is a part of school secondary board of andhra pradesh, It is the most important branch of Mathematics.  There are number of topics which clear the basics of Mathematics, which are included in algebra. The topics like Algebraic equations, Factors of polynomials, Linear equations and their problems, Inequalities; radicals etc. all are the part of algebra. (want to Learn more about algebra calculator, click here),
To find the limits of a function algebra calculator can be used. The limits of a function can evaluated easily using algebra. Suppose that g (x) is a function. To define this function at a particular point x = a, the algebra calculator can be used. If the function is not piecewise and defined at all the places ten the limit of the function would be f (c).
Let's have the simplest example of solving an algebraic equation. To solve an algebraic equation is one of the basic tasks of mathematics. To solve the several types of algebraic expressions or equations algebra calculator is used. This is an online tool to find the result of algebraic equations with accuracy.
Let's have an algebraic expression px + q = r. Here we need to find out the value of the variable x. In the given expression p, q and r are the known parameters. With the help of algebra calculator the value of x parameter can be calculated in easy way with the following steps-
Step 1: While using the algebra calculator enter the values of the p, q and r which are given in the problem already.
Step 2: After solving the expression with the basic rules of algebra, the calculator will show the result.
With the help of the algebra calculator the result of any expression given in the problem could be determined only the need is to feed the parameters which are given in the problem.


This is all about the algebra calculator and if anyone want to know about Normal Distribution then they can refer Internet and text books for understanding it more precisely and Read more maths topics of different grades such as how to find the central angle of a circle in the upcoming sessions here.

data analysis worksheets

Data Analysis Worksheets help us to learn about the data analysis method. Data analysis is useful for the analysis of data which we need to do while we are preparing by the study and collection of data. We collect the data for the analysis and thus we will learn the various methods of data analysis. Raw Data collected for the statistical analysis can be collected through direct sources or indirect sources. But it is to be kept in mind that when the data is collected, we must be clear with our purpose of collecting the data. It will help us to collect the appropriate form of the data, which is actually required for the analysis.  Data Analysis is to be done by data processing, which help to give the required information after certain processing.
By the term processing of data, means arranging the data in the systematic order so as to get the required result and outputs. This output can be in the form of figures or sometimes we get the output in the form of graphs and figures. Graphs basically help us to predict and analyze the data, which has been collected for the systematic study and analysis of the figures. Thus, it finally helps us to take the decisions and come to certain conclusions. This is basically done for certain conclusions and predictions which need to be done after we analyze the data. Data Analysis is itself a very interesting and deep subject. One need to possess a deep and thorough knowledge of the subject and the capability to take the decisions based on the analysis.

In the next session we will learn how to Calculate Critical Value. You can switch to edurite.com to know about cbse class 9 books and In the next session we will discuss about algebra calculator.