סרטונים מובילים
The circumference of a circle (also called the perimeter of a circle) is easy to work out - because you just multiply the diameter by pi!
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#perimeter
#cicumference
#circle
Rule of 72. This method lets you compound interest calculations in your head to find an the time taken for an investment to double. 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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Finding the square of a nmuber is easy - just follow these mental math tricks. You'll be able to calculate squares faster than ever and amaze everyone with your utter genius!
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#fastmathtricks
#mentalmath
#mathtrick
Work out percent problems of an unknown amount with this fast math lesson.
This video shows how to easily solve percentage problems and looks at how to convert percentages to fractions and percentages and fractions to decimals.
This lesson shows two methods for working out the problems -- enabling learners to work with the method that works best for them. These strategies are both easy for students to learn and for teachers to teach -- and give a greater understanding of the relationship between percent, decimals and fractions when describing parts of an amount.
The first method explored uses the fraction of the percent (putting the number out of 100), and then easily and instantly converting this to a decimal. Then using some simple equation juggling we solve the equation to get the answer. This type of method is good for those who can follow simple steps and are capable when shifting around numbers in an equation to get an answer.
Using the second method we look at where we can solve the problem by changing the value to one percent then 100 percent.
This is another video from the tecmath channel made in response to a question from a viewer -- so the other lesson you can learn is this -- if you have any mathematical questions and you need them answered -- then let me know -- I'd be glad to help! Even better if we can find a math trick or two along the way!
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This problem will only take 30 seconds...but plenty of people are getting it wrong. Can you get it right first time? To donate to the tecmath channel: https://paypal.me/tecmath?locale.x=en_AU
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#mathproblems
#mathriddles
#mathsforfun
Cube numbers are the result of multiplying a number by itself three times.
The opposite of cubic numbers are cube roots.
For the playlist of indicies and prime numbers.
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ome people may find these easy - others not - but it is essential if you want to easily mentally multiply bigger numbers that you first master this.
Please like and subscribe!
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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Simplifying Square Roots - this is a really easy math lesson when working on surds or radicals. Just work with perfect squares! 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 least common multiple (aka the lowest common multiplier LCM) is easy to work out - just use this simple method. Is this the fastest way? Like many things in math that depends on the problem being solved!
This video lesson looks at solving the LCM for less complex numbers. 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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Okay, you've got me - this is Pythagorus' theorum....
Really easy though!
In a right angled triangle the square of the two smaller sides added together is the same as the square of the diagonal.
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Adding and Subtracting Fractions with the Same Denominator.
This video is part of a playlist:
https://www.youtube.com/playli....st?list=PLjbxBzUM6SL
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#fractions
#fraction
#fractionsmath
How to work out medication dosages. This part of a series looking at math calculations used by nurses.
To do IV calculations go here: https://www.youtube.com/watch?v=Dezgx_WWEdI
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This maths trick for fast multiplication allows you multiply any two numbers quickly, using vedic math. This method is a great alternative either for those who need that extra bit of help with math, or people who like to expand their knowledge.
This trick is especially useful in multiplying large numbers, with less mess and confusion than standard long multiplication.
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In the video lesson, you will learn how to convert a number from standard notation to scientific notation by moving the decimal place. By doing this really big numbers and really small numbers can be easily described.
e.g to write 470,000 in scientific notation, write the number 4.7, (so that there is only one digit to the left of the decimal point), then count the number of places that the decimal point must be moved to get back to 470000 ( in this case is 5). If the number is big it is a positive exponent (like this one - which we'd write as 4.7 x 10^5).
A little number - like 0.0000033 gives a negative exponent (in this case 3.3 x 10^-6).
Good luck! 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 work out the area of a triangle with three examples. This lesson also looks at the units used such as square metres and square centimetres.
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In the movie Good Will Hunting the MIT Math Professor sets his students a challenge...that took them two years to solve.
Can you solve it? There is a good chance you can!
BTW want to be a true math genius?
Math geniuses always write on glass.
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This math lesson looks at pythagorean math - how to work out the unknown sides of right angles triangle. The 3,4,5 triangle will also be explored. Become a math genius! 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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Forget finding common denominators when adding dissimilar fractions - this way is much faster and easier. This video also looks at how to deal with mixed numbers and simplification. This cool math trick will have you adding fractions like a genius!
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This math problem looks simple, but it might have you spinning in circles! M Can you solve it?
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#mathproblems
#mathriddles
#mathsforfun
Ohm's law states that the current through a conductor between two points is directly proportional to the voltage across the two points.
This electronics video tutorial provides a basic introduction into ohm's law. The math is easy. Lot's of examples.
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It is easy to avoid borrowing when you are subtracting if you minus by pairs of digits rather than individually. Use this method to do lightening fast subtraction calculations with no problem! In this fast and easy math lesson you will learn this pretty obvious trick, and be subtracting faster than ever before!
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This math multiplication trick is easy to do, and can be used to directly multiply large numbers! Math is easy with the tecmath math method of multiplication (say that five times fast!)
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This algebra lesson looks at how to easily expand expressions in brackets and simplify the result. Another easy math lesson.
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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 to label sides and angles in right triangles as well as when to 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. 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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