Permutations are easy to understand...but take time to get to why we work them out the way we do so you can understand them better. This video also looks at how permutations differ from combinations, and well as looking at simple permutations, permutations with limited spaces, permutations with repeats, and permutations in a circle.
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Percentage discounts?
How would you usually work them out?
Work out a percentage of an amount, then take it off the initial amount- meanwhile the person at the checkout where that item is on sale is giving you the stink eye...
This percentage discount trick is easier than all that! Check it out and you will see for yourself!

Percentage of amounts trick: https://youtu.be/UDa3kRxCNak

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Need to compare hourly rate to annual pay?
This math hack will allow you to do it instantly and easily - faster than you think!

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Percentage tricks: https://www.youtube.com/watch?v=8fG9nbVV9g4&list=PLjbxBzUM6SLn7pLTxrksJjlHoLY8aOcGk&index=7

The simple process of how to simplify ratios.

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Dealing with dosage math for nurses. 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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The quadratic equation can easily used to solve quadratic equations.


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Solve simultaneous equations using the elimination method.
The steps are as follows:
The Elimination Method
Step 1: Multiply each equation by a number so that the two equations have the same coefficient for a selected variable.
Step 2: Subtract the second equation from the first.
Step 3: Solve this new equation to get the value of your first variable.
Step 4: Substitute into either Equation 1 or Equation 2 above and solve for the second variable.


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Recurring decimals look a bit tricky but it is easy to convert them to fractions.
You'll spot the pattern no worries!

This is a remake of a video I made earlier - but I like this explanation better.

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#shorts
Can you solve this question in under 2 seconds?
I've got less than a minute to explain it to you!

Here is this trick extended - well worth watching!
https://youtu.be/VcVcKta8OfI

Here is THE mental multiplication lesson playlist - progressing you through your mental multiplication.
https://www.youtube.com/playli....st?list=PLjbxBzUM6SL

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Linear equations from graphs. Like it sounds, we will use the graphs of linear equations to produce the equation itself, using the slope intercept method (y = mx + b). Using this method we will first determine the y intercept, and then the gradient of the equation.
This is part of a series of videos looking at linear equations.

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This is the easiest way to compare fractions - so if you need help with how to compare fractions you're in the right place!

The steps are easy - and you'll be working out which is the largest fraction instantly.


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These algebra shortcuts are essential if you want to speed through your math work and still get the right answers.

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Probability in math measures the likelihood of an event occurring. In this video we look at basic probability, and the probability formula. 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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#fastmathtricks
#mentalmath
#mathtrick The easy way how to multiply numbers under twenty - faster than a calculator!
Become a math genius the smart way - using vedic math - not the way you've been taught! To support free math by tecmath on Patreon (thankyou): https://www.patreon.com/tecmath

Vedic Maths is series of mathematical tricks, originating in a book written by an Indian monk Swami Bharati Krishna Tirtha in 1965. It contained a list of mental calculation techniques which were claimed to be retrieved from the Vedas - are a large body of religious texts originating in ancient India.
Please if you are learning this, however, do not treat multiplication as a mere trick. It is important to remember 17 x 13 for example, is the repeated adding of 17, 13 times (17 + 17 + 17 + 17...).
This method is a shortcut, but as the end proof shows, it is using a shuffling of required calculations to make this multiplication more efficient.
For 17 x 13, we have lots of multiplication going on (that is repeated addition!) - 10 x 10 and 3 x 10 and 7 x 10 (lots of 10s - 20 all up) - and 7 x 3.

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These two ways of multiplying are much easier and faster than any way you ever learnt in school! What's more they are easy to remember - easier than the usual method!
But what do you think?

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The easy way how to multiply numbers under twenty - faster than a calculator!
Become a math genius the smart way - using vedic math - not the way you've been taught!

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This amazing multiplication trick possible has it's origins in Japan -although I have heard arguements it is a Vedic math trick.

Either way - this trick allows you to multiply two numbers quickly and accurately, using a handy visual method - lines.

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

Part 2 of this video (how to multiply using lines with fives and zeros) is here:
https://www.youtube.com/watch?v=kSUwRjy0rYI&list=PLjbxBzUM6SLkk-Pm6oDtvJc-lsM-xli_1&index=10

Arithmetic made simple!

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This fraction trick is so easy - but you probably don't know it...because, let's face it, you were stuffing around and not paying attention in school! It's OK - blame your teacher I guess!
That's OK - youtube and tecmath has your back - with this, the easiest fraction trick you really should know by now!

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More fraction tricks: https://youtu.be/ou2OAWeMBlY

Mixed numbers with fractions addition can be done instantly - just follow this easy method.


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Russian Hackers stole my YouTube account - but I got it back!
Here's how


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