Free Calculators Search Results

How To: Convert a fraction to a decimal

In this tutorial, we learn how to convert a fraction to a decimal. Start of by dividing the top number by the bottom number. You can do this by hand by writing out the long division of it, or you can use a calculator. If you choose to do this by hand, the bottom number will be on the outside of the division sign, and the top number will be on the inside. Once you have divided this out, the answer will be the decimal that you come up with. Continue to practice doing this will different numbers...

How To: Convert fractions to decimals

In this tutorial, we learn how to divide fractions into decimals. First, you will want to divide your numerator by your denominator. If you can simplify this number further, it will make it easier for you to divide. You can do this on the calculator, or you can do it by hand. The numerator will go on the outside of the division sign and the denominator will go on the inside. When you divide, you will come up with a decimal. If you have an improper fraction, you will probably end up with (1.so...

How To: Find the circumference of a circle using basic math

This video teaches us the method to find the circumference of a circle given its radius. The video tells us to find the answer in terms of pi and also to the decimals value. The formula to find the circumference is two times the product of pi and the radius. The first step involves the drawing the circle and marking the radius. The radius of the circle in the video is 6.5 cm. Now use the formula to find the circumference. Substitute the value of the radius in the formula of circumference. We ...

How To: Convert a percentage to a decimal number

Learn how to easily convert percentage values into decimals in this quick video. When converting percentages it is important to remember that a percentage simply means to divide by 100. For example, take 5%. That means 5 divided by 100 or 0.05. These can easily be done on your calculator once you understand the meaning of percentage. Another example, let's take 23%. Divide 23 by 100 and you get .23. Finally, as a last example takes 99%. Take 99 divide it by 100 and the answer will come out to...

How To: Do long division with remainders

This video goes through the step by step process of doing long division with remainders. Multiple examples are used throughout the video to give the viewer a better idea of how to properly complete the difficult task. Perfect for anyone learning long division for the first time, or for anyone attempting to relearn long division after forgetting how to do the process (an all to common occurrence in a world with calculators on every cell phone).

How To: Hack Bricks Breaking with a Cheat Engine (11/21/09)

By following the notepad narration you will learn how to hack bricks breaking on Facebook using a Cheat engine. According to t4terr its a quick simple process and all you'll need to do to start is play the game a little bit, then open up calculator and multiply your score by 8, then get out your cheat engine and find bricks breaking Facebook in windows. Then after you find it paste your multiplied value into the value box and hit first scan. Then change the value of them all. t4terr says they...

How To: Understand why you cannot divide by zero

This video discusses the number zero in division. When dividing numbers, there are ways to check your math, like multiplying the two numbers. When you multiply zero with any other number, it still is zero. The video goes on to discuss indeterminate answers. If you were to divide a zero by a zero, your calculator would come up with an error message. But there are real results to these odd equations and they are indeterminate. The indeterminate doesn’t really show up in everyday living, but in ...

How To: Convert temperature measured in Celsius to Fahrenheit

This video teaches how to convert a value in Celsius to Fahrenheit in simple steps. First take a paper and marker and keep in mind a Celsius value (e.g-32) to convert into Fahrenheit. Now use the formula to convert Celsius to Fahrenheit which is F=1.8(32)+32. Use a calculator to calculate the formula and you will get the result as 89.6 Fahrenheit. Now round it off the and your final result will be 90 degree Fahrenheit.

How To: Find the slope from a set of points

To find the slope of a line you must have two points and then you must plug in the two points into the slope formula. The slope formula is m= y2-y1 over x2-x1. If the slope is a fraction be sure to reduce to the lowest. Remember if a number is divided into zero it is zero, if zero is divided into the number it is undefined. A calculator can help one remember this. Horizontal lines have slopes and vertical lines do not. Drawing the lines on a graph can help you see the actual slopes and which ...

How To: Use the TOA formula in trigonometry

The video is a tutorial in trigonometry. The teacher teaches that the tangent or the tan of an angle is the ratio of the opposite side to the adjacent side of a right angled triangle. If one side and one angle is given then the value of the unknown side can be found by solving the equation tan of angle is equal to opposite upon adjacent side. If the angle is to be found then the tan inverse of the value is seen in the calculator.

How To: Use the Cosine Law

In this video tutorial the author shows how to use the Cosine Law. He shows how to find an angle of a triangle where he know all the sides of a triangle, using the cosine Law. He uses a lower case letter to designate a side and a capital letter to designate an angel apposite to that side. He gives the formula for the cosine law using a triangle as an example. Now he goes on and demonstrates how to use a scientific calculate. He shows how to use the degree mode in the calculator to solve these...

How To: Build a potato battery

Like a lemon, a potato can produce electricity. This science experiment was prepared by Ebtisam Al Anzoor and demonstrated by Mustafa Daif. The electricity is proven using an analog micro ameter. The positive is copper from a penny or copper coin while the negative is a galavanized nail. The potato releases a charge and is further proven when it is connected to a calculator. You can daisy chain the potatoes for a greater charge.

How To: Use the Pythagorean theorem

Pythagoras was a smart man, so smart that his mathematical theory is named after him and still used today, more than 2,000 years later: the Pythagorean theorem. It implies that the square of the hypotenuse of a right triangle is equal to the sum of the squares of the other two sides. The Pythagorean theorem is a cornerstone of geometry. Here’s how to use it.

How To: 11 Best Calculator Apps for iPad to Solve All Your Math Needs

Apple doesn't include its Calculator app on the iPad and never did. One almost appeared over 12 years ago but was nothing more than a blown-up version of the iPhone app. Since then, the company still hasn't made an iPad-optimized calculator, and there is no shortage of third-party alternatives to fill the gap. It may happen one day, but for now, these are the best calculator apps for your iPad.

How To: The Hidden Way to Delete Numbers on Your iPhone's Calculator

Let's say you're using your iPhone's Calculator app, and you're knee-deep into a complicated calculation with many steps. You type in a large number, for example, "123,466,789," but mess up. You meant to type "5" midway through but accidentally typed "6" instead. The only thing to do now is start over, no matter how far along you are, right? Wrong.

Hack Like a Pro: The Basics of the Hexadecimal System

Welcome back, my novice hackers! It has become clear from some of your questions that quite a few of you are unfamiliar with the hexadecimal system, or simply, hex. The hexadecimal system is used throughout computing and if you have never studied this Base16 numering system, it may appear relatively opaque.

How To: Apple's Massive Calculator Update Lets You Convert Currency, Area, Length, Time, and Other Measurement Units with Ease

Apple's Calculator app received a massive redesign, making it so much more than a simple calculator with built-in scientific functions. There's a new Math Notes feature that ties in with the Notes app, it can keep a history of your calculations, and you can even convert over 200 currency and measurement units.

How To: Your iPad Has a Hidden Built-in Calculator You're Not Using — Here's How to Unlock It

There is no iPad version of Apple's Calculator app (at least, not yet), so you won't find it on your Home Screen, in your App Library, or as a shortcut in the Control Center. But that doesn't mean your iPad doesn't have an official calculator.

How To: Turn Your iPhone into a Real-Time Interpreter

Nothing beats a human translator, but Google Translate and other software-based solutions have developed into decent alternatives for help with basic translations. Need an English word translated into German? No problem — but what if you need to have a conversation with someone who doesn't speak your language? Is Google Translate capable of doing that? The answer is not really.

How To: Calculate math without a calculator

Before the calculator and even the abacus was invented, there was a little instrument called the human brain that we used to do math. Remember that? While most of us turn to our trusty Ti-84s to do calculus homework or whip out our cell phone calculators to determine how much we should tip at Johnny Rocket's, it can often be much faster to use our own brains, along with a piece of paper and pencil.

How To: Compute mathematical problems in your head

This educational video tutorial will show you how to compute mathematical problems in your head. You will see some techniques to do some maths problems in your mind. Learn to do algebraic computations in the head without having to look at a calculator. Become a human calculator!

How To: Update Your iPhone Calculator's Look with These Easy Color Mods

If you're anything like me, you use the Calculator app on your iPhone like fifty times a day, and you're sick of the same user interface it's had since iOS 11 came out. While you can't mod the button shapes and sizes, there is a way to breathe new life into your calculations with some Calculator theming.

How To: Manage widgets on the Dashboard in Mac OS X

This video describes what is known as the dashboard, which is located in the dock on the Mac desktop. The dashboard is a set of small programs known as widgets that let you see information at a glance. Some examples of useful widgets are a clock widget, a calendar, a calculator, a dictionary/thesaurus, and a Google search widget. You can bring them up at any time by simply clicking on the dashboard icon. If you want to add a new widget, click on the plus sign at the bottom of the window and y...