Friday, April 5, 2013

Interactive Six Grade Math

Introduction to interactive six grade math:

Sixth grade math terms provides the foundation for solving various mathematical problems and also for learning basic operations in math.
In this article of interactive sixth grade math, the various general mathematical terms related to Sixth grade math and interactive example problems related to sixth grade math are given.

Please express your views of this topic what is an example of an algebraic expression by commenting on blog.

Interactive terms for sixth grade math:


Algebraic equation

It refers to any equation that contains only algebraic expressions and signs of operations.

Algebraic expression

It consists of various algebraic terms connecting with the help of signs of operations. When an algebraic expression consists of only one term, it is called a monomial.When an algebraic expression consists of two terms, it is called a binomial.When an algebraic expression consists of three terms, it is called a trinomial.

Like and Unlike terms

Terms that differ in their numerical coefficients but do not differ in symbol are called like terms.Terms may or may not differ in their numerical coefficient are called unlike terms.

Collinear points

If three or more points lie on a line,then the points are called collinear points.

Concurrent lines

If two or more straight lines pass through the same point, then they are called concurrent lines. The point through which the lines pass is known as point of concurrency.

Perpendicular lines

If two lines lie in the same plane and intersect at right angles, they are called perpendicular lines.

Parallel lines

The lines that lie in the same plane and never intersect are called as Parallel lines.

Angles

An angle is formed by two rays with a common end point called the vertex. An angle which is greater than 0o but less than 90o is called an acute angle. An angle which is greater than 90o but less than 180o is called an obtuse angle. An angle of measure 90o is called a right angle. An angle of measure 180o is called a straight angle.

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Interactive problems for sixth grade math:


1) A school hall has 800 seats. 350 of them are occupied. What percentage of the seats are occupied?

Solution:

Number of seats of a school hall  = 850

Number of seats occupied        =  350

Percentage of the seats occupied  = `<< 350 / 850>>`   x 100

= `<< 35/85>>`   x 100

= 41.18

2) Michael bought a Clock for `$` 20 and he sold it for `$` 25. What is his gain?

Solution:

Cost price of a Clock     =  $ 20

Selling price of Clock    =  $ 25

Profit  or  Gain     =  Selling price - Cost Price

=  25 - 20

=  $ 5

3) The length of  a rectangular field is 50 m. Its breadth is 25 m. Britney ran round it once. How far did she run?

Solution:

length   l    =  50 m

breadth b  =  25 m

Distance that Britney ran ----> Perimeter

Perimeter   =  2 ( l + b )

= 2 ( 50 + 25 )

=  2 ( 75 )

=  150 m

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