# Decimal-places

### How To : Calculate Tips Faster on Your iPhone Using the Shortcuts App

When it's time to calculate a tip at a restaurant or bar, I usually try some mental math at first, but sometimes I resort to opening the Calculator quickly from the Control Center on my iPhone and doing a quick calculation. But with Apple's Shortcuts app, there's an even easie ...more

### How To : Convert decimals into fractions

In this simple tutorial the author shows the basic arithmetic operations like converting a terminating decimal into a fraction. He says that the complexity depends up on the number we are converting. He asks us to imagine the decimal as a fraction with an imaginary denominator ...more

### How To : Find the percentage of a number easily

In this arithmetic basics tutorial the author shows how to find the percentage of a number. He says that hundred percentage of number is the same number. He says that if we find the percentage of a number where the percentage is less that 100, then the value of the number redu ...more

### How To : Remember and recite pi to eight decimal places

Looking for an easy way to impress the math geeks in your life? This brief clip from the BBC will help you memorize pi to eight decimal places without breaking a sweat through use of a simple mnemonic device: "How I wish I could calculate pi easily today." (Hint: Count the num ...more

### How To : Multiply decimals together

In this tutorial we learn how to multiply decimals together. Start off by ignoring the decimal points on the equation and just imagining you have normal numbers. Then, multiply the two numbers that you wrote down together. Once you figure that out, it will be time to reintrodu ...more

### How To : Find decimal place values in basic arithmetic

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. With this installment from Internet pedagogical sup ...more

### How To : Multiply decimals together

This video is about multiplying decimals together. The numbers to be multiplied are 1.003 times 2.8. First, you multiply like you would normally. Apply the number of decimal places. Count total number of digits to the right of the decimals. In this case it four. Apply the numb ...more

### How To : Find the mean o a set of numbers

"Mean" is really the average on a set of numbers. The video uses the temperatures on a weather report as an example of a data set. Start by adding the temperature numbers of the week up. After you have the total, divide that number by 7, because you used 7 numbers in your data ...more

### How To : How Old Are You on Mars and Venus? Learn How to Convert Earth-Years Across Our Solar System

Let's say today is your birthday. You've just put those boisterous, vicenarian times behind you, reaching the first big step to your upcoming midlife crisis—30 years old. Maybe this is your midlife crisis. After all, if you're not where you want to be in life when you join the ...more

### How To : Perform thin-layer chromatography in the chemistry lab

Find out how everything in a chemistry lab works, from pipettes to burners to recrystallization to storage. You'll get precise instructions on how to work and perform certain scientific duties in the chem lab, whether it's chemical or just ordinary high school science. Watch ...more

### How To : Subtract with borrowing

For people who are learning basic math skills, this video will show you how to subtract larger numbers which involve borrowing. If the top number on your rightmost digit is smaller than the number before it, you will need to borrow from the column before it. To do this, you wi ...more

### How To : Do multiplication

For people who are learning how to multiply, this video will show you easily how to multiply numbers with more than one decimal place. Starting with your rightmost digit on your bottom number, multiply with your top number as if you were doing a simple multiplication problem. ...more

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