How can you multiply in your head? Mental maths is easy - using this trick to reprogram your brain to multiply quickly and easily. This lesson shows you tips on how to multiply faster than ever!

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Percentages can be done mentally both accurately and rapidly using this trick. Percentages made easy with the cool math trick!

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How Many Faces, Edges And Vertices Does A Square Pyramid Have?
Here we’ll look at how to work out the faces, edges and vertices of a square pyramid.
We’ll start by counting the faces, these are the flat surfaces that make the pyramid. A square pyramid has 5 faces altogether - 4 triangular faces, as well as 1 rectangular face.
Next we’ll work out how many edges the pyramid has, which are where two faces meet. A square pyramid has 8 edges.
Next we’ll count the corners of the pyramid (the corners). A square pyramid has 5 vertices.

For the full playlist for the faces, edges and Vertices of a whole lot of 3D shapes go to https://www.youtube.com/playli....st?list=PLjbxBzUM6SL

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In this math lesson we explore how to increase or decrease an amount by a given percentage - through simple multiplication.
The method for doing this type of percentage problem is as follows, where we find 35 increased by 20%.
First we start with the whole amount - in this case 35. Percentages describe a number expressed as a fraction of 100, so as 35 is the whole amount it is 100% or 100/100 or 1. To take off 20% we are taking off 20/100 or 0.2 of this - so 1 - 0.2 = 0.8.
0.8 of 35 is the same as 0.8 x 35 = 28.0.

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Decimals playlist...click below:
https://www.youtube.com/playli....st?list=PLjbxBzUM6SL

Decimals are easy to multiply - just count the number of places behing the decimal place for each of the numbers you are multiplying, then add these together to get the total number of decimal places required for your answer.
For example:
1.5 (1) x 1.5 (1) = 2.25 (2) The numbers of decimal praces are shown in brackets.

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This looks at how to do simple subtraction in maths.
No tricks, no fuss.
This is one of the most basic things in maths - yet as a senior level maths teacher I am astounded how many people lack this ability - and as such they struggle throughout their school years at maths.
Addition, subtraction, division and multiplication - these are the most important thing anyone should know in maths , yet a large number of people who still are yet to attain this skill!
Practice this lesson!

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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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#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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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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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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The quadratic equation can easily used to solve quadratic equations.


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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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Multiplying Fractions


This video is part of a playlist:
https://www.youtube.com/playli....st?list=PLjbxBzUM6SL

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#fractions
#fraction
#fractionsmath

#fastmathtricks
#mentalmath
#mathtrick Dividing fractions quickly is easy with the butterfly math trick! 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 shortcut is used to solve algebraic equations instantly, without all the messy working out!
Best of all, this trick is easy to learn, so you'll be able to solve problems quicker in no time at all.
Learn better. Learn faster. Learn smarter.

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Linear equations are equations between two variables that gives a straight line when plotted on a graph. For example y = 2x + 1 is a linear equation - and as we will see it goes up by a regular amount and when we graph it it will be expressed as a straight line.
We will also look at how to easily recognise a linear equation and a non linear equation, through the use of three simple observations that can be made about the equation.
An easy quick math lesson for you.


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Medication Calculations for nurses and all medical types.....in this video we look at concentration percentages. 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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Work out fractions of an unknown amount with this fast math lesson. This lesson explains the role of the denominator and numerator (bottom and top numbers) in a fraction to show how to solve these types of math problems quickly and easily. 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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There is no trick to doing surface area quickly, but there is to getting the right answer every time. Be a math genius with mental math.

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This is the easiest way to learn your times tables from 10 to 20 is to use this shortcut.
What's more there is an easy visual explanation WHY this works!
On beyond Zebra!


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Convert from miles to kilometres instantly, and the back again! Or...convert from kilometres to miles. This method is a fast way to do the multiplication required!


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#convertingmeasurements
#convertingunits
#metric

This trick solves simultaneous equations fast, without all the multiplying of equations usually used.

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In this educational math lesson we'll discover the basics of angles, parallel lines and perpendicular lines. We'll look at the different types of angles that can be formed by intersecting lines and all that fun stuff.
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Adding Fractions with a Different Denominator
Subtracting Fractions with a Different Denominator

This video is part of a playlist:
https://www.youtube.com/playli....st?list=PLjbxBzUM6SL


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#fractions
#fraction
#fractionsmath

This is the third example in a series looking at how to solve simultaneous equations using the elimination method.

For more examples of how to solve simultaneous equations using the elimination method go here: https://www.youtube.com/playli....st?list=PLjbxBzUM6SL

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