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How to convert binary to decimal.
Here's the more detailed explanation:
https://www.youtube.com/watch?v=64bXbK104qk
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#convertbinary
#binary
#binarydecimal


This fast math trick can be used to divide any number by 5, 25 or 125 instantly and easily.
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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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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 fast math trick can be used to multiply any number by 5, 25 or 125 easily.
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Velocity calculations are easy to do - you just need to know a few tricks to get your answers exact. You will learn that speed is a measurement of distance and time, and how to easily transpose to work out any speed distance time calculation.
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How Many Faces, Edges And Vertices Does A Sphere Have?
Here we’ll look at how to work out the faces, edges and vertices of a sphere.
We’ll start by counting the faces, these are the flat surfaces that make the sphere. A sphere has 0 faces altogether - but it does have a curved surface.
Next we’ll work out how many edges the sphere has, which are where two faces meet. A shere has 0 edges.
Next we’ll count the corners of the sphere (the corners). No surprises, a sphere does not have any 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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Russian Hackers stole my YouTube account - but I got it back!
Here's how
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Mixed numbers with fractions addition can be done instantly - just follow this easy method.
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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


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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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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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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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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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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What is the probability of two events occurring together? First determine if the events and independent or dependant on eachother. Does replacement occur? Do you need product or addition rules? All this answered in this probability math lesson. 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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Subtracting fractions with different denominators instantly using this fast math trick! No working out common denominators - just direct subtraction! Become a math genius in no time!
This video is part of a playlist:
https://www.youtube.com/playli....st?list=PLjbxBzUM6SL
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#subtractfractions
#fractionsubtract
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#fractionsmath


I don't want to go clickbaity, but I think only about 2% of people will be able to solve this...the rest will give up! Good luck.
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For the playlist of math problems:
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Mentally Convert Fractions to Percentages sometimes.....not always possible!
This video is part of a playlist:
https://www.youtube.com/playli....st?list=PLjbxBzUM6SL
To support tecmath making new math videos on Patreon:
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#fastmathtricks
#mentalmath
#mathtrick
#fractions
#fraction
#fractionsmath