Maths 1
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1) Provides tips for subtracting numbers with many trailing zeros such as 1,000 - 258 by breaking it into steps or subtracting from 999 and adding 1 back. 2) Explains a method for easily multiplying numbers by 250 or other multiples of 10 by multiplying by 1000 and dividing by 4. 3) Discusses mental math tricks like knowing that 11 multiplied by any two-digit number involves adding the digits in pairs and how memorizing things like squares and fractions can speed up calculations.
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Here are the steps to write a number between 0 and 1 in scientific notation with an example:
1. Write the number in decimal form. For example, 0.000375.
2. Count the number of decimal places in the number. In this example there are 4 decimal places.
3. Move the decimal point to the left by that number of places. This gives 3.75.
4. Write the number as a coefficient and exponent of 10. Since we moved the decimal point 4 places to the left, the exponent is -4.
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This document provides an overview and examples of tutorials on Vedic maths techniques. It introduces 16 sutras or principles of Vedic maths that can be applied in various ways. The tutorials give simple examples of applying the sutras to solve problems, without attempting to teach their systematic use. They are based on examples from the book "Fun with Figures". The tutorials then provide examples and exercises for techniques like instant subtraction, multiplication without tables, adding and subtracting fractions, squaring numbers, and dividing by 9.
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This document provides an overview and examples of tutorials on Vedic maths techniques. It introduces 16 sutras or principles of Vedic maths that can be applied in various ways. The tutorials give simple examples of applying the sutras to solve problems, without attempting to teach their systematic use. They are based on examples from the book "Fun with Figures". The tutorials then provide examples and exercises for techniques like instant subtraction, multiplication without tables, adding and subtracting fractions, squaring numbers, and dividing by 9.
Vedic maths 2
The document provides several methods from Vedic mathematics for operations like squaring, multiplying, dividing, finding squares and square roots of numbers. Some key techniques discussed are:
1) A quick way to square numbers ending in 5 by splitting the answer into two parts and using the formula of multiplying the first number by one more than itself.
2) A method for multiplying where the first and last digits add to 10 by multiplying the first digit by the next number and combining with the product of the last digits.
3) Finding squares of numbers between 50-60 by adding the last digit to 25 and squaring the last digit.
4) Various sutras and techniques like vertically and crosswise,
Knowing our numbers
This document discusses the development of counting large numbers over thousands of years. Early humans could only count small numbers, but gradually learned to handle and express larger numbers through symbols. This collective human effort helped mathematics grow further and faster as needs increased. Modern humans can easily count and communicate large numbers using place value and expanded notation. The document then provides examples of comparing, ordering, and expanding numbers up to the crore place value.
Tips & Tricks in mathematics
This is a presentation on useful tips and tricks that can be used in mathematics. Please like and comment, it gives a lot of inspiration.
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