KRITHIKADEVI (PEDAGOGY)

 1.  Memorizing Pi To remember the first seven  digits of pi , count the number of letters in each word of the sentence: "How I wish I could calculate pi." This becomes 3.141592. 2.  Contains the Digits 1, 2, 4, 5, 7, 8 Select a number from 1 to 6. Multiply the number by 9. Multiply it by 111. Multiply it by 1001. Divide the answer by 7. The number will contain the digits 1, 2, 4, 5, 7, and 8.  Example: The number 6 yields the answer 714285. 3.  Multiply Large Numbers in Your Head To easily multiply two double-digit numbers, use their distance from 100 to simplify the math: Subtract each number from 100. Add these values together. 100 minus this number is the first part of the answer. Multiply the digits from Step 1 to get the second part of the answer. 4. Super Simple Divisibility Rules You've got 210 pieces of pizza and want to know whether or not you can split them evenly within your group. Rather than whip out the calculator, use these simple shortcuts ...

 1. Multiplying by 6 If you multiply 6 by an even number, the answer will end with the same digit. The number in the ten's place will be half of the number in the one's place. Example: 6 x 4 = 24. 2. The Answer Is 2 Think of a number. Multiply it by 3. Add 6. Divide this number by 3. Subtract the number from Step 1 from the answer in Step 4. The answer is 2. 3.Same Three-Digit Number Think of any three-digit number in which each of the digits is the same. Examples include 333, 666, 777, and 999. Add up the digits. Divide the three-digit number by the answer in Step 2. The answer is 37. 4.Six Digits Become Three Take any three-digit number and write it twice to make a six-digit number. Examples include 371371 or 552552. Divide the number by 7. Divide it by 11. Divide it by 13. The order in which you do the division is unimportant! The answer is the three-digit number. Examples: 371371 gives you 371 or 552552 gives you 552. A related trick is to take any three-digit number. Multi...

  Maths Puzzles A maths puzzle is based on mathematical or numerical facts, rules, and objects, or whose solution requires strong mathematical reasoning, thought or consideration. Mathematics is the study of abstract topics such as numbers, shapes, quantity, space, and change. In simple words, it is the study of facts related to numbers and shapes; as there is no generally accepted definition for maths. There are a variety of views among mathematicians and scholars as to the specific scope and interpretation of mathematics. Maths puzzles or Mathematical puzzles form an essential part of recreational mathematics. They have special rules, but they do not typically involve competition between two or more players. Preferably, the solver must find a solution that satisfies the given conditions to solve a particular puzzle. Maths puzzles require the basics of mathematics to solve them. A common type of math puzzle is logic puzzles, which are pretty much interesting for students not only ...

  Absolute Values The  absolute value of a number  refers to the distance of a number from the origin of a number line. It is represented as |a|, which defines the magnitude of any integer ‘a’. The absolute value of any integer, whether positive or negative, will be the  real numbers , regardless of which sign it has.  It is represented by two vertical lines |a|, which is known as the modulus of a. For example: 5 is the absolute value for both 5 and -5. |-5| = +5 and |+ 5| = +5 In this article, we will learn what is the absolute value of a number, symbol, examples, absolute value in number line, absolute value of real numbers, absolute value of complex numbers in detail. Table of Contents: Definition Symbol Examples Absolute value function Properties Absolute value of real number Absolute value of complex number Absolute value in Number line Solved Problems Practice Questions FAQs What is the Absolute Value of a Number? The absolute value of a number o...

  What is BODMAS ? The evaluation of an expression involving numbers is one of the basic tasks in arithmetic. If an expression contains addition (+), subtraction (-), multiplication (x), division (÷), bracket (), and Of (of), then the precedence of simplification of the operation is given by “BODMAS rule”. First, we have to know that what is  BODMAS rule ? Or What is BODMAS formula? BODMAS rule  is a rule or order that is used to simplify the arithmetic expression involving more operators in mathematics. When an equation involving more operators first we have to know that in which order we have to solve the expression. This problem is solved with the help of BODMAS rule. The full form of BODMAS is: B rackets (Parts of a calculation inside the bracket always come first). Precedence of brackets are : [{(bar)}] O rders (powers and square roots) D ivision M ultiplication A ddition S ubtraction Each letter of the word stands for the first letter of an operator. If an expressio...

Pascal's Triangle Pascal’s Triangle  is a kind of number pattern.  Pascal’s Triangle is the triangular arrangement of numbers that gives the coefficients in the expansion of any binomial expression.  The numbers are so arranged that they reflect as a triangle. Firstly, 1 is placed at the top, and then we start putting the numbers in a triangular pattern. The numbers which we get in each step are the addition of the above two numbers. It is similar to the concept of  triangular numbers .  In this article, we are going to learn Pascal’s triangle history, definition, properties, patterns, formulas and examples with complete explanation. Table of contents: History Definition Construction How to use Patterns Properties Formula Expansion FAQs Pascal’s Triangle History Blaise Pascal was born at Clermont-Ferrand, in the Auvergne region of France on June 19, 1623. In 1653 he wrote the Treatise on the Arithmetical Triangle which today is known as the  Pascal’s Triang...