Math
Sub Category
We can measure Angles in Degrees. There are 360 degrees in one Full Rotation (one complete circle around). In this lesson we learn how to measure the size of an angle, and how to contruct angles using a protractor.
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In this Introduction to Probability we will look at basic probability, the probability formula and tree diagrams. Every chance you'll be OK.
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This simple math trick can be used to multiply any number by 5, 25 or 125 easily (and instantly!).
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It really helps and is appreciated!
Casting out nines is a fast and easy method of making sure your math division calculations are correct. This trick is fast, easy, and accurate! 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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Division of Fractions is easy - the trick is to know that you must invert (flip) the divisor (number being divided) - then multiply the fraction out. You will soon be able to divide any fraction with this fast math lesson.
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The Order of operations is the order in which you should do a maths equations. You've probably heard it called BODMAS or PEDMAS...even BIDMAS or PIDMAS....it's all the same thing!
First do anything in brackets (also called parenthesis). Second, do any orders (these are squared, cubed, square root and the like). Any multiplication or divide come next, and finally do any addition or subtraction...left to right. 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 Using algebra it can be proven that 2=1.
Use this math trick to fool your teacher, trick your friends or possibly end the universe.
Warning: do not try to do this in an enclosed space. 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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Ratios, rates, percentages, currency conversion, speed...all easy and accurately done.
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This video looks at the way to easily work out percentages. This is an essential part of math.
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To go to the fractions playlist follow this link:
http://www.youtube.com/watch?v=do_IbHId2Os
In this math lesson, we learn to use division to convert fractions into their decimal form. This video uses the rapid short division method, where we simply divide the denominator into the numerator (top divided by bottom).
This math video lesson also looks at recurring and non recurring decimals that can result from calculating fractions.
It is also a similar method we use to convert fractions to decimals and then percentages - to do this we convert the fraction to the decimal as explained, then we multiply by 100 to change to a percentage.
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In this video we look at how to multiply any two digit number by eleven instantly - much faster than any calculator! Multiplication has never been so fast and easy with this Vedic Maths Trick! Fast Mental Math Tricks and times tables - you've got to love them!
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Percentages, fractions and decimals are essential for high school maths students - yet a lot of students need extra help on these.
It is first of all important to realise that percentage, fractions and decimals are essentially describing the same thing - that is - they are describing a part of an amount.
Percentages describe part of an amount out of 100 - an easy way to think of this is if you think of cents in the dollar - e.g. 25% is like having 25 cents out of a dollar.
Fractions describe parts by telling us how many parts an object is out of another - for example - you have a pizza - cut it into 8 parts and eat 3 bits - thats 3/8 parts are eaten.
What is very important to understand with fractions is that they are written so that the top number is dividing the bottom number. 1/4 means 1 divided by 4, which equals 0.25 (decimal) or 25% percentage.
Decimals decribe a part of a number out of 1. For example 0.5 is 0.5 out of 1 or 1/2 or 50%....
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Multiply big numbers in your head!
And it's easy champions!
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Fractions are parts of numbers. In this introduction to fractions we look at the parts of a fraction - the numerator and the denominator, as well as proper fractions, improper fractions and mixed numbers and how these relate to each other.
This video is part of a playlist:
https://www.youtube.com/playli....st?list=PLjbxBzUM6SL
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https://www.patreon.com/tecmath To donate to the tecmath channel: https://paypal.me/tecmath?locale.x=en_AU
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#fractions
#fraction
#fractionsmath
Ratios are said to be in proportion if they equal. This video looks at how to simply see if two ratios are in proportion - that is whether they are equivalent. We then look at how to easily find out how much of a quantity is required to keep something in proportion. To support free math on Patreon (thank you): https://www.patreon.com/tecmath
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This is the fastest way to convert kilograms (kg) to pounds (lb), and then in trun to convert pounds to kilograms.
In this video we will look at how many pounds in a kilogram, and using this idea we will use a fast math trick to convert between the two.
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#convertingmeasurements
#convertingunits
#metric
How are your adding fraction skills? Can you win this challenge?
This video is part of a playlist:
https://www.youtube.com/playli....st?list=PLjbxBzUM6SL
To support tecmath making new math videos on Patreon:
https://www.patreon.com/tecmath To donate to the tecmath channel: https://paypal.me/tecmath?locale.x=en_AU
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#fractions
#fraction
#fractionsmath
How to work out the area of a rectangle in square metres and square centimetres.
To look at the decimals playlist go to:
https://www.youtube.com/playli....st?list=PLjbxBzUM6SL
Subtracting decimals is fast and easy - just remember to line up place values and the decimal points. With this easy math lesson you can soon be able to subtract decimals without a problem. 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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Prepare to be amazed!
I CAN read your mind - but is this math or is it magic?
This trick fools magicians - because it doesn't use sleight of hand - it uses the Kruskal count.
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#magic
#magictrick
#mathtrick