Watch this four-part how to video on solving the 5x5 Rubik's Cube Professor. What, you didn't know they made them that big? Well, they do, and it's called the Professor. The 5x5 monolith. The first step to solving the 5x5 Rubik's Cube is that you need to correctly position th ...more
Check out this instructional math video that demonstrates how to solve ratio problems. In the 14th lesson, learn how to solve SAT problems using the Official SAT Study Guide. Here are the math problems and their page numbers that this video covers: - p472 #6 - p843 #16 - p535 ...more
Watch this how to video to figure out how to solve the 4x4 Rubik's Cube Revenge. So, get out your Rubik's or Eastsheen Cube and watch this tutorial. First, get the centers down. Then, pair each individual edge with one short algorithm. Then, remember how to solve the 3x3 Rubi ...more
Solving equations involving fractional powers of a variable are not that hard to solve as they sound. In fact, just watch this video to learn a few tips and solving these type of equations will become a little bit easier. This video basically just solves a sample fractional e ...more
Ever had a picture cube that you just couldn't fix the middles for? If you already understand the Rubik's Cube, then watch these two videos, if not, then watch something else, or read the "7 Step Solution Guide." Part 1 of 2 - How to Solve a picture Rubik's Cube. Part 2 of 2 ...more
It's time to solve that Rubik's puzzle of yours, but how do you do it? Erno Rubik designed these three-dimensional mechanical puzzles to be precariously difficult, unless you know a little about mathematical algorithms, then it's just a matter of time and determination. This ...more
From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next ...more
See how to unpack and solve a word problem containing radical equations with this free video math lesson from Internet pedagogical superstar Simon Khan. From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belo ...more
Tyson Mao is a renowned world competitor in solving the Rubik's Cube. Not only did this Californian become a world class solver, but he also formed the Rubik's Cube Association with fellow speed solver Ron van Bruchem, which holds competitive events for the Rubik's Cube. If yo ...more
Does your child want to learn how to solve the Rubik's Cube? What better way is there than learning how to solve the Rubiks Cube for kids than by kids? This video four-part video tutorial will show your children what they need to know. These contain mnemonic devices. There ar ...more
Check out this instructional math video that demonstrates how to solve a number sequence. These are basically a list of numbers, and there's a pattern to figuring out which number will come next. In the 15th lesson, learn how to solve SAT problems using the Official SAT Study ...more
Well, there's three parts to this video from Dan Brown on how to solve the bigger Rubik's Cube, the 4x4. Watch it. Learn it. Live it. -NON-PARITY ALGORITHMS- 1) L'*, 2U, L* 2) R*, 2U, R'* 3) L', R, U, F, U', L 4) D*, R, F', U, R', F, D'* -PARITY ALGORITHMS- 1) 2U*, 2L*, ...more
Okay, you're sitting down, staring at this mess of colors in your hand, trying to make it look like it did when you originally bought it. The Rubik's Cube, my friend, is not as hard as you think it is. Watch this step-by-step, nine-video tutorial on how to solve the 3x3 Rubik ...more
Equations involving square roots are difficult to solve because of the complexity involved in performing operations on the square root terms. But you can follow a series of steps to solve these problems easily. To solve these kind of problems first isolate the square root term ...more
Bored with crosswords and sudoku puzzles? Well, try your hands at a new type of puzzle: KenKen logic puzzles. Invented by Japanese math teacher Tetsuya Miyamoto, KENKEN allows you to test your puzzle acumen and improve your math skills at the same time. KEN-KEN (kenken), KenD ...more
This tutorial video will show you how to solve the last two centers on the V-cube 7, the Rubik's Cube style puzzle. These 7x7 V-cubes are difficult to solve, but like most puzzles, become easier to handle with practice. Good luck, V-cubers! Just don't expect to solve this puzz ...more
Line integrals will no longer be the feared terrorist of the math world thanks to this helpful guide from the Khan Academy. Marvel at the ease in which the integral is taken over a closed path and solved definitively. Then take out a sheet of paper and see if you can do the sa ...more
Solving long and extensively complicated equations in grade school was tough to do by hand. Keeping track of which part of the equation to solve first took time, training, and lots of bad grades. As soon as middle school began, our dependance on calculators grew and difficult ...more
If you want to be fast on the Rubik's Cube, you'll of course need to know a few tricks... a few fingertricks, that is. This video tutorial will show you exactly how to solve the Rubik's Cube fast with fingertricks. Remember, your solving times won't decrease unless you practic ...more
You can solve any proportion using the fundamental rule of proportions. First you must build the proportion if you are given a word problem. Decide using logic whether it is a direct proportion (more on one side means more on the other). If so, find the parts of the equation t ...more
To solve a proportion for a variable you should employ cross multiplication. The basis of cross multiplication is the property which states that the product of the numerator of one fraction and the denominator of what it is set equal to is equal to the product of the remaining ...more
In this video tutorial the instructor shows how to solve equations by the comparison method. In this method he isolates either the x or y variables in both the equations and now compares the other side of equations directly to derive the value of the other variable. Now this d ...more
This video series shows you different patterns for solving the Rubik's Cube. The four patterns are a different colored dot on each side, a cross and an X, a pattern with an X on each side and the last pattern is 2 sides with solid colors and 2 with diagonals. Part 1 of 4 - How ...more
So, you can solve the Rubik's Cube, good for you, but what about the Square One? Erno Rubik is nothing compared to Karel Hršel and Vojtech Kopský, who invented the Square One puzzle, also called by its full title, "Back to Square One", or its shorter name of "Cube 21". It's sh ...more
See how to solve the Rubik's Twist! The Rubik's Cube has been puzzling people for ages now, with only the best of minds able to solve it without any help. The rest of us might not be as lucky, we need a little help, but the Rubiks Twist might not be as hard. This video tutoria ...more
Erno Rubik had no idea his three-dimensional, mechanical puzzle cube would be so popular when he designed it, but he did know it would perplex problem-solvers all over the world. In order to solve the Rubik's Cube, you need to know a little bit about math, specifically algorit ...more
Find out how to solve the Cast Heart metal puzzle from Hanayama. The Hanayama Cast Heart is the perfect puzzle for your Valentine, and the perfect solution to boredom. Sharpen your mind with this mind boggling puzzle, which rates a 4 out of 8 in difficulty. Hanayama says: Thi ...more
Watch this video learn how to solve the heart and handle wire puzzle.
Solve a Rubik's Cube faster with F2L techniques This video is created to improve solve time on the cube. There are two qualities used toward improving solve time. One is physical-lubrication of the cube, quality, speed and finger tricks. The second is mental which includes un ...more
Toss aside that Sudoku. Take a stab at the new craze to hit the Times: KenKen. New York Times puzzle editor Will Shortz introduces KenKen and gives a brief play-by-play demonstration of this new puzzle craze. In this video, Will Shortz speaks about how he found out about and ...more
Solving puzzles can be hard, especially when it comes to Rubik's Cube. Erno Rubik's puzzles are extremely difficult, three-dimensional mechanical cubes, unless you're determined and can handle a few mathematical algorithms, then they're easy, or at least not impossible. Watch ...more
The V-Cube 7 is the grandaddy of all Rubik's Cube style puzzles, and it's on of the hardest puzzles to solve, with its 7x7 sides. If you're having a hard time getting started with the puzzle beast, specifically the 5x5 center, then this video tutorial should help you out. See ...more
From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next ...more
As you might guess, one of the domains in which Microsoft Excel really excels is business math. Brush up on the stuff for your next or current job with this how-to. In this tutorial from everyone's favorite digital spreadsheet guru, YouTube's ExcelIsFun, the 29th installment i ...more
If you know how to solve the Rubik's Cube, then why don't you try yourself at the Square One puzzle? If you thought the Rubiks Cube was puzzling, then you haven't seen anything yet! This video tutorial will show you how to solve the Square One puzzle. The Square-1, also known ...more
Check out this puzzle video tutorial on how to solve a 4x4 Rubik's Cube by advanced edge pairing. This video goes over how to match up multiple edges at a time, allowing you to eventually become faster with practice. This will also allow you to understand the technique necessa ...more
They might seem intimidating at first, but the Celtic Knot puzzles you come across in the Elite Treasure Trails in RuneScape can still be solved. No matter what puzzle you're given, this method will let you figure out a solution to all of them.
In this video tutorial, viewers learn how to solve power steering moans. Users will need a vacuum pump. Begin by filling reservoir about half way full. Then draw a vacuum of approximately 20"/Hg and let the vacuum sit for 5 minutes. Now recheck the fluid level in the reservoir ...more
I'm not a fan of this practice, but many developers release their wares on iOS before eventually porting their apps to Android. This was the case for PhotoMath, a popular and very useful app that can solve math problems with your smartphone's camera. The app is incredibly int ...more
Watch and learn how to solve this metal mind puzzle. These metal puzzles never seem to go away. This one is 2 horshoe shaped rings with a connector in the center. Watch as you gently fold the horse shoes to free the ring within.
Since launching Google Lens as a a Pixel-exclusive feature in 2017, Google has not only expanded the availability of the tool to Android and iOS, but also built upon its functionality. Now, in addition to translator, tip calculator, personal shopper, and tour guide, Google has ...more
This video tutorial shows how to solve inverse proportions. The tutor says that in inverse proportion it works differently than in the direct proportion. He says that in inverse proportion more means less or less means more. He uses the example of driving a car to illustrate h ...more
If you haven't noticed yet, I've started dishing out some "Scrabble Bingo of the Day" articles that showcase interesting and somewhat unusual seven-letter words (or longer) that could give you an extra 50-point bonus on the board, as long as you empty your rack. So, for this w ...more
The Rubik's Twist, not quite the Rubik's Cube, but just as fun. If you don't this puzzle by the name Twist, perhaps you know it by its more familiar nickname, the Snake. Check out this video tutorial to see how to solve the Rubiks Twist, or Snake, whichever you like better. T ...more
In this tutorial the instructor shows how to solve percent equations. The general form of a percent equations is that a is b% of c. As there can be three kinds of variables a, b, c, the questions involving percent equations can be of three types having one of the three variabl ...more
Bored with crosswords and sudoku puzzles? Well, try your hands at a new type of puzzle: KenKen logic puzzles. Invented by Japanese math teacher Tetsuya Miyamoto, KENKEN allows you to test your puzzle acumen and improve your math skills at the same time. KEN-KEN (kenken), KenD ...more
An educational video from free math tutoring that shows an easy way to calculate differences of temperature. Many times people commit simple mistakes in subtracting temperatures that lead to illogical results. This video explains a very common pitfall and at the same time, cle ...more
Need some help figuring out how to work with angles in geometry? Look no further. From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever ...more
The Megaminx is a dodecahedron-shaped puzzle similar to the Rubik's Cube. It has a total of 50 movable pieces to rearrange, compared to the 20 of the Rubik's cube. This six-part video tutorial will teach you how to solve the mighty Megaminx puzzle. In order to solve the Megam ...more
Watch this video tutorial to see how to solve the acid cube Square One puzzle. There's a few things you should know before even trying to solve the Square-1 puzzle, which is knowing how to solve the Rubik's Cube. Then you need to know the notation for rotating the Square One, ...more
Here is a step by step tutorial video on how to solve the Celtic knot ring puzzle. Put your Celtic knot ring puzzle back together!
A great way to rack your brain is by trying to solve a puzzle, so grab your puzzle and get solving! If you need a little help, this video tutorial will show you how to solve the Rubik's Cube F2L with the Keyhole Method. The 3x3 Rubik's Cube is one of the most baffling puzzles ...more
In this video the instructor shows the different methods of solving quadratic equations. There are many methods to solve quadratic equations each with its pros and cons, each method suitable for a particular situation. The first method to solve quadratic equation is factoring. ...more
Check out this instructional math video that demonstrates how to solve number lines. In the 11th lesson, learn how to solve SAT problems using the Official SAT Study Guide. Here are the math problems and their page numbers that this video covers: - p409 #8 - p535 #17 - p583 # ...more
We know the method for answering the question "What is the x percent of y" but, what about the answer to the following question "The x percent discounted price of an article is y. Find the original price." This is a reverse percentage problem that can be solved using the metho ...more
Learn from the world's bestselling Sudoku Master - watch as Wayne Gould explains a key technique in breaking Extreme Sudoku puzzles. Part two's advice is on using X-wings to crack Extreme Susoku puzzles. Part 1 of 2 - How to Solve extreme sudoku with Wayne Gould. Part 2 of 2 ...more
Okay, solving a Rubik's Cube one-handed in 15 seconds is pretty impressive. If you find solving a Rubik's Cube with two hands to be lacking in challenge and flair, try doing solves using only one hand. There is a technique to it, and this video will teach it to you. Basically, ...more
You have a Rubik's Cube, maybe your mother gave it to you for your birthday, maybe you actually bought it for yourself, or maybe you just found that colorful puzzle cube in the gutter, but either way... you don't know how to solve it. This step-by-step seven-part video tutori ...more
YAYMATH In order to use rational functions in intermediate algebra, Robert Ahdoot begins by setting values to the functions f(x) and g(x). He then adds these functions together, with the equation (f+g)(x). After addition comes subtraction, using the equation (f-g)(x). And fina ...more
Watch this four-part tutorial to learn how to solve a 6x6x6 V-Cube 6. This is a rather advanced cube, so it's recommended that you already know how to solve both a 4x4 and 5x5 cube first. If not, you might end up getting just a little bit lost. This detailed instructional vide ...more