Order of operations explained simply...and as an added bonus we'll look at the solutions to some of those clickbaity problems that 'divided the internet'. To donate to the tecmath channel: https://paypal.me/tecmath?locale.x=en_AU
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#convertbinary
#binary
#binarydecimal

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 work out unknown angles using 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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This math problem doesn't look very hard, but this problem is deceptively tricky...or is it?

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For the playlist of math problems:
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#mathproblems
#mathriddles
#mathsforfun

How to work out body surface area, and dosages based on this for pediatrics. 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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Sequences and series...what are the next numbers in the following pattern?
You'll be fine. Just follow these tips and tricks.

Calculating the tip is not hard. Just use these basic mental percentage strategies and you'll be all good.
And yes. We generally don't tip in Australia! But in some countries it's how wages are paid - and I reckon if that's the case you've gotta pay people fairly for thier job!

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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! In addition, we'll look why this trick works, as well as tips to do it mentally. To donate to the tecmath channel: https://paypal.me/tecmath?locale.x=en_AU
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Casting out nines is a fast and easy method of making sure your math multiplication calculations are correct. This trick involves adding the digits of each number and reducing each to a single digit, then comparing the end result with the answer. 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 trick is a great one.
It uses an amalgamation of other mental math techniques - and will have you smashing those calculations.

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

Here is that link how to multiply questions like 49 x 40 instantly
https://youtu.be/yZULgerBRms

The rest are links where I beg for money.

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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!

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To work out the fraction of an amount, first of all it is essential to convert the fraction to a decimal.
To do this divide the numerator (top number) by the denominator (bottom number). eg - 1/5 = 0.2 Then times this answer by the amount you wish to find a fraction of.
e.g 1/5 of 20 = 0.2 x 20 = 4
To work out the percentage of an amount, it is also essential to first convert the percentage to a decimal.
To do this move the decimal place left two spaces - eg - 25% = 0.25 Then times this answer by the amount you wish to find apercentage of.
e.g 25% of 20 = 0.25 x 20 = 5. 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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Surface Area Half Cylinders 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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Calculate the cube of any number between 1 and 100 fast

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To go to the fractions, decimal and percent playlist follow this link:
http://www.youtube.com/watch?v=do_IbHId2Os

Some decimals are easy to convert to fractions - you just put the decimal over a suitable multiple of ten - and then simplify from there. To do the more complex decimal to fraction conversions there is a trick, which involves some very easy algebra. Learn how to do this and you will be able to convert any decimal to a fraction.

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Exponent notation (also called index notation) is a shorthand way of writing repeated multiplication. The base is the number that is being multiplied and the exponent (index) is the number of time it is multiplied.

For the playlist of indicies and prime numbers.
https://www.youtube.com/playli....st?list=PLjbxBzUM6SL

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You can subtract these sorts of questions easily and in you head in under 3 seconds. Seriously. You'll smash it.
Just remember...youtube and tecmath has your back - with this, the easiest subtraction trick you were EVER taught in school!
Numbers with zeros.

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#fastmathtricks
#mentalmath
#mathtrick Using math it can be proven that 2+2=5....although obviously there is a lie in there.
Use this math trick to fool your teacher, trick your friends or possibly get in an argument. Better yet learn how to avoid making these mistakes in your own reasoning.
Warning: anger will ensue.

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Dividing by multiples of 10 is simple to do.
First count the number of zeros in the number you are dividing by, then move the decimal place of the number being divided the same number of times.
Because we are dividing by numbers ten and above the answer is going to be smaller, and so the decimal place moves to the left. 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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Learn to calculate faster than any calculator numbers close to 100 using vedic math. This is a great method of doing fast maths in your head. Using some multiplication, and some addition you too can be a genius!

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This algebra lesson looks at how to easily expand binomial expressions in brackets and simplify the result. Another easy math lesson.

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