Thursday, September 9, 2010

Prime numbers 1- 1000

Let me discuss list of prime numbers from 1-1000 today, it is different right. We discussed about prime numbers from 1-100

Definition of prime number:- Prime numbers are natural numbers or a whole numbers. the numbers that cannot be factored or, writer precisely, are numbers n whose divisors are insignificant and presumption by just 1 and n. Table is characterized as the set of list. Here in this content,

The following numbers are the list of prime numbers from 1 – 1000,

2 3 5 7 11 13 17 19 23 29 31 37 41 43 47 53 59 61 67 71 73 79 83 89 97 101 103 107 109 113 127 131 137 139 149 151 157 163 167 173 179 181 191 193 197 199 211 223 227 229 233 239 241 251 257 263 269 271 277 281 283 293 307 311 313 317 331 337 347 349 353 359 367 373 379 383 389 397 401 409 419 421 431 433 439 443 449 457 461 463 467 479 487 491 499 503 509 521 523 541 547 557 563 569 571 577 587 593 599 601 607 613 617 619 631 641 643 647 653 659 661 673 677 683 691 701 709 719 727 733 739 743 751 757 761 769 773 787 797 809 811 821 823 827 829 839 853 857 859 863 877 881 883 887 907 911 919 929 937 941 947 953 967 971 977 983 991 997

These numbers have only two factors, 1 and itself, therefore they are called as prime numbers. Lets learn what are factors of 108 shortly.

Friday, September 3, 2010

uniform distribution(probability)

One of major type of discrete probability distributions is uniform distribution.

This is what i want to explain you today. As i worked on many probability problems till now, therefore decided to work on something related to it.

Uniform distribution:- It is a process where the probability of every outcomes are the same.

I will discuss on this in more details shortly with some examples. I had explained you what is probability using an example of a card, i will do something similar again. I am sure you will enjoy that.

Guys work on some ratio worksheets to improve in ratios. Feel free to leave your comments.

Monday, August 30, 2010

Fraction simplifier

Here today i am here to explain you fraction simplifier, look at some simple fraction problems which has been simplified below.

Problem 1:

solve simple fraction: 2/4 / 2/8

Solution:

Given 2/4 / 2/8

= 2 /8 = 8 /2 alternate second fraction up-down

= 2 /4 * 8 /2

= 2 *8 / 4 *2 = 16 /8 multiply reciprocal of second fraction and first fraction

= 16 /8 = 2 simplify the fraction

Therefore, the last simple fraction is 2 or 2/1

Many such simple example will be back shortly. Let me know what is the square root of 125 if you are aware of.

Friday, August 27, 2010

easy math problems

When i work on hard math problems i use to always think hope i get some math help. I use search of methods to get math help, but earlier we did not have the facility which is available today.

I use to request my friends to sit with me and study so that i learn with them. I used to ask my teacher to explain me again and again because i never followed her in the class. Some times my teacher use to do if for me but not all the times. I use to feel very sad for that.

Now my daughter is able to work on algebra 2 worksheets quickly and that's because of the math help we get these days. I hope this help i would have received earlier and i did not have to ask some one to help me...Thank you again to the new technology.

Wednesday, August 25, 2010

How to add fractions

I have some simple examples to discuss with you how to add fractions...look below for the examples......I had explained you how to do division of fractions earlier.

The below problem will help you understand the concept.

How do u add these fractions 3/4 and 2/4?

Solution:

Step 1: Check the denominator of the two fractions are same.

Here the denominators of the fraction are same.

Step 2: Add the numerator of the two fractions.

(3 + 2) / 4 = 5 /4

Step 3: Simplify is not possible.

Answer: 3 / 4 + 2 / 4 = 5 /4.

Before you start working on add fractions, understand this post which will be useful.

Saturday, August 21, 2010

irregular polygon

I have come up with a grade 4 math topic called the polygon. First lets learn the definition of a polygon and then lets learn what are regular and irregular polygon as well.

Definition of polygon:- Its a closed geometrical figure with three or more straight lines that meet in pairs in same vertices. The sum of all the interior angles is 180 degree and the sum of the exterior angles are 360 degree.

Now lets go ahead with the definition of the two different types of polygon.

Definition for regular polygon:
A regular polygon is defined by the angles and the sides are equal

Definition for irregular polygon:
A irregular polygon is defined as the angles and the sides are not equal and it’s the opposite of the regular polygon’s.

Did you like the post? Let me know your comment on this......

Tuesday, August 17, 2010

maths past papers

I came across a few commonly asked questions in maths past papers which i have mentioned below. We been discussing on various math questions till date and solved them also.

Look below for the simple examples which are asked in previous papers.

Example 1:

Multiply: ( x + 9) ( x + 5 )

Solution:

( x + 9 ) ( x + 5 ) = x ( x + 5 ) + 9 ( x + 5 )

= x2 + 5x + 9x + 45

= x2 + 14x + 45


Example 2:

Calculate the perimeter of rectangle with the length and width are 12 cm and 14 cm.

Solution:

Perimeter = 2( l+ w )

= 2( 12 + 14 )

= 2 (26)

= 52 cm


Now start looking for more questions once you finish it start checking math answers..and if you have any topic that i can discuss with you..keep me informed.