How to divide decimals: first divide as if there is no decimal. Next, count the number of digits after the decimal in each number. Through a bit of subtraction you can work out where the decimal goes.
#decimals #decimaldivision #howtodividedecimals


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This method for working Least Common Multiple is both rapid and 100% accurate, even for the most difficult examples. To support free math on Patreon (thank you): https://www.patreon.com/tecmath To donate to the tecmath channel: https://paypal.me/tecmath?locale.x=en_AU To donate to the tecmath channel: https://paypal.me/tecmath?locale.x=en_AU
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How to convert between binary and decimal easily.

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#convertbinary
#binary
#binarydecimal

It is easy to convert work out perimeter - it is the distance measurement around the outside of a shape. To donate to the tecmath channel: https://paypal.me/tecmath?locale.x=en_AU To donate to the tecmath channel: https://paypal.me/tecmath?locale.x=en_AU
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Lattice multiplication is a multiplication method that allows you multiply any two numbers quickly using a table.
It is especially useful in multiplying large numbers, with less mess and confusion than standard long multiplication.
This method has many names - Lattice multiplication, gelosia multiplication, the Hindu lattice, sieve multiplication as well as Venetian squares.

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Adding decimals is easy - just make sure all of the place values (especially the decimal place) line up. Through the information in this math lesson, and practice you will soon be adding decimals easily.


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In this video we look at how to rapidly multiply any polynomial, as well as how to check our answer quickly for greater accuracy. In addition to this, we look at the application of multiplying polynomials to solve everyday math multiplication. This is an essential component of algebra. To donate to the tecmath channel: https://paypal.me/tecmath?locale.x=en_AU To donate to the tecmath channel: https://paypal.me/tecmath?locale.x=en_AU
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This trick allows you to multiply two numbers quickly and accurately, using a handy visual method - lines.
It also shows how to deal with zeros and larger numbers, for easier multiplication.

This method does not use any multiplication tables, making it accessible to all learners.

The first of the videos showing how to multiply with lines is here: https://www.youtube.com/watch?v=_AJvshZmYPs&list=PLjbxBzUM6SLkk-Pm6oDtvJc-lsM-xli_1&index=10

Arithmetic made simple!

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With this mental math trick you will be able to multiply these numbers in your head rapidly - a critical skill in everyday math. In this video we look at tips on how to do multiplication instantly without using a calculator. Fast math is good math! To donate to the tecmath channel: https://paypal.me/tecmath?locale.x=en_AU To donate to the tecmath channel: https://paypal.me/tecmath?locale.x=en_AU
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This multiplication trick seems to have it's origins all over!
It's a great trick which uses groupings of numbers and can be used for any numbers!

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#mathtrick
#mathstrick
#multiplicationtrick

This easy visual proof shows that the area of a circle is πr2.


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It is easy to work out percentages of a number.
In this video we look at the standard way of finding the percent of a number though changing the percentage amount to a fraction out of 100 (this is what a percent really is!), then using the standard formula to find our answer. To donate to the tecmath channel: https://paypal.me/tecmath?locale.x=en_AU To donate to the tecmath channel: https://paypal.me/tecmath?locale.x=en_AU
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Work out the area of a circle by using pi (3.1415) and the radius (half the width or diameter of the circle) - so that Area - Pi x radius x radius.
We then work out perimeter of circles using pi and radius - so that circumference = 2 x Pi x radius.
Finaly we look at the volume of cylinders - which is the area of the circle x the height (or Pi x Radius x Radius x height).

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This maths calculation tricks helps you quickly work out hard to divide numbers, such as those with long division. With no effort you will be doing long division with 9, leading on to doing long division with any number under 100 in future (linked) videos.
This would have to be the most easy long division trick.
See my other videos for how to divide the normal way, and how to divide fractions and decimals. To donate to the tecmath channel: https://paypal.me/tecmath?locale.x=en_AU To donate to the tecmath channel: https://paypal.me/tecmath?locale.x=en_AU
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This video shows how the distance between two points can be found, by using a version of the distance formula that is easier to understand. The added benifit - you're more likely to remember it! To support free math on Patreon (thank you): https://www.patreon.com/tecmath To donate to the tecmath channel: https://paypal.me/tecmath?locale.x=en_AU To donate to the tecmath channel: https://paypal.me/tecmath?locale.x=en_AU
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This video looks at how the video on multiplying two digit numbers rapidly works, as well as looking at where common mistakes are made. To donate to the tecmath channel: https://paypal.me/tecmath?locale.x=en_AU To donate to the tecmath channel: https://paypal.me/tecmath?locale.x=en_AU
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Being able to subtract using zero is an important skill - and using vedic math it has never been as easy. Calculate your change quickly in maths calculations involving money. To do this you can subtract with zeros, or even faster using this counting up technique, as taught in vedic maths.
This is another in the series of how to do fast maths.

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How to instantly add large sets of three digit numbers mentally.
Using this mental math method you will be able to add any number of three digit numbers with each other - faster than a calculator! Become a math genius in no time using this trick! T

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Basics of adding fractions - including simple fractions with the same demoninator, fractions with different denominators and mixed numbers.
You will learn how to add or subtract fractions using the lowest common denominator - where basically you work to get the bottom number - the denominator the same.
From this we will look at adding mixed numbers.

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How to calculate surface area of a cylinder.
The surface area of a cylinder is easy to work out. In this video we will look at how to do it quickly and accurately.

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