Math
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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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How Many Faces, Edges And Vertices Does A Triangular Prism Have?
Here we’ll look at how to work out the faces, edges and vertices of a triangular prism.
We’ll start by counting the faces, these are the flat surfaces that make the shape. A triangular prism has 5 faces altogether - 2 triangle faces, as well as 3 rectangular faces.
Next we’ll work out how many edges the triangular prism has, which are where two faces meet. It has 9 edges.
Next we’ll count the corners (the corners). A triangular prism has 6 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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How Many Faces, Edges And Vertices Does A Triangular Pyramid Have?
Here we’ll look at how to work out the faces, edges and vertices of a triangular pyramid.
We’ll start by counting the faces, these are the flat surfaces that make the 3D shape. A triangular pyramid has 4 faces altogether - all triangles.
Next we’ll work out how many edges the tetrahedron has, which are where two faces meet. A triangular pyramid has 6 edges.
Next we’ll count the corners of the tetrahedron (the corners). 4 altogether.
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
To donate to the tecmath channel: https://paypal.me/tecmath?locale.x=en_AU
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This mental multiplication trick uses the idea of a third number - a base number - to help us multiply two numbers in your head. This series of videos first looks at multiplying numbers near 10 using base 10. The second video looks at multiplying using base 20 and 30. The third video looks at how to apply this mental multiplication trick to numbers near 50. The forth video the investigates ho to easilt mentally multiply numbers near to 100. Continue your mental math multiplication abilties here!
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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
To donate to the tecmath channel: https://paypal.me/tecmath?locale.x=en_AU
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How Many Faces, Edges And Vertices Does A Cone Have?
Here we’ll look at how to work out the faces, edges and vertices of a cone.
We’ll start by counting the faces, these are the flat surfaces that make the cone. A cone has 1 face altogether - 1 circular base, as well as 1 curved surface.
Next we’ll work out how many edges the cone has, which are where two faces meet. A cone has 1 edge.
Next we’ll count the corners of the cone (the corners). No surprises, a cone 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
To donate to the tecmath channel: https://paypal.me/tecmath?locale.x=en_AU
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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 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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This math trick allows you to work out the square root of any number - NOT JUST PERFECT SQUARES - instantly. With decimals. With ease. Can you work faster than a calculator? With this tecmath trick you just might! The math shortcut magic is back!
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This mental multiplication trick uses the idea of a third number - a base number - to help us multiply two numbers in your head. This series of videos first looks at multiplying numbers near 10 using base 10. The second video looks at multiplying using base 20 and 30. The third video looks at how to apply this mental multiplication trick to numbers near 50. The forth video the investigates ho to easilt mentally multiply numbers near to 100. Continue your mental math multiplication abilties here!
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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.
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This fast math trick can be used to divide any number by 5, 25 or 125 instantly and easily.
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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
How to multiply 3 digit numbers numbers - calculating the fast way!
Using this math trick for fast calculation you will be able to multiply any pair of three digit numbers with each other faster than you ever imagined. Become a math genius in no time at all using vedic maths!
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Fuel consumption calculations are easy - just follow the maths.
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#fuelconsumption
#mpg
#fuel costs
#fastmathtricks
#mentalmath
#mathtrick How to multiply ANY 2 digit numbers numbers up to 100 - calculating the fast way!
Using this method you will be able to multiply any pair of two digit numbers with each other - faster than a calculator! Become a math genius in no time at all using vedic math!
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Use this fast math method to astound your friends, family, math teacher, dog or even cat - although it is pretty much universally recognised that cats are really only good at appearing in cute cat videos and they really don't care much for math. 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
To support tecmath on Patreon: https://www.patreon.com/tecmath
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How to convert decimal to binary.
Here's the more detailed explanation:
https://www.youtube.com/watch?v=64bXbK104qk
Support us on Patreon:
https://www.patreon.com/join/tecmath To donate to the tecmath channel: https://paypal.me/tecmath?locale.x=en_AU
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#convertbinary
#binary
#binarydecimal
An easy intro to prime numbers and composite numbers that MAKES SENSE.
What are prime numbers?
A prime number is a number that has exactly 2 factors: two and itself.
What are composite numbers?
A composite number is one which has two or more factors.
What is the difference between a prime number and a composite number.....?
For the playlist of indicies and prime numbers.
https://www.youtube.com/playli....st?list=PLjbxBzUM6SL
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Dividing amounts into a ratio is not only easy, it can be done quickly with only a few steps. You will be a master at this in only a few minutes through learning on the tecmath math channel!
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