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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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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This tutorial looks at how to quickly and easily do long division using Vedic Math.
Learn to calculate long division as quickly as a calculator, without needing the guesswork often assosiated with standard long division.
This video is the last of four videos looking at this ingenious method. 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 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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Surface Area Half Cylinders 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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Trigonometry is an easy way to work out the unknown sides and angles of a right angled triangle. The trick - know the side names - the opposite, hypotenuse, and adjacent, and know how and when to apply the trigonomic functions - sin, cos and tan. This is the only trick to getting it right every time!
In this lesson, students learn work out unknown side lengths using use sine, cosine, and tangent. You will need a scientific calculator for the problems in this lesson - and I'll show you how to access one on your computer.

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How do you solve conditional probability examples?
What is the probability of an event A given that event B has occurred?
This is conditional probability, solved by the formula that P(A|B) which reads "probability of A given B" is equal to the P(A intersect B)/P(B).
Three examples are examined.


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Conditional Probability Formula: P(A|B) = P(A and B)/P(B)

The 3,4,5 triangle uses fairly simple math which can be used for all sorts of things. And yep it is Pythagoras but don't let that scare you...

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Long division is easy - really it is just short division but looks harder.
It involved several steps - there is no getting away from these - trust me I have searched fr a faster easier method!
Watch th is lesson and learn to divide by 2-digit numbers.

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If Teresa’s daughter is my daughter’s mother, what am I to Teresa?
This video looks at the answer to the Teresa's Daughter puzzle, as well as these similar ones...

A man is looking at a picture of a man on the wall and states,
“Brothers and sisters I have none, but this man’s father is my father’s son.”
Who is the man in the picture in relation to the man looking at the picture?

I am your mother’s brother’s only brother-in-law. Who am I?

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