Problem: Write an article based on this summary: Learn the basic value of each digit. Use a mnemonic. Add numbers with larger digits first. Treat numbers with smaller digits first as subtraction. Break a number into parts to understand it. Look for a horizontal bar for very large numbers.

Answer: There are only a few Roman numerals, so it doesn't take long to learn them:  I = 1 V = 5 X = 10 L = 50 C = 100 D = 500 M = 1000 A mnemonic is a phrase that you can memorize more easily than a list of numbers, that will help you remember the order of the digits. Try repeating this one to yourself ten times:  I Value Xylophones Like Cows Do Milk. If the digits are ordered largest to smallest, all you need to do to read them is add the value of each digit. Here are some examples:  VI = 5 + 1 = 6 LXI = 50 + 10 + 1 = 61 III = 1 + 1 + 1 = 3 Most people who use Roman numerals save space by using subtraction to show certain numbers. You'll know this is happening if a smaller digit is in front of a larger digit. This only happens in a few situations:  IV = 1 subtracted from 5 = 5 - 1 = 4 IX = 1 subtracted from 10 = 10 - 1 = 9 XL = 10 subtracted from 50 = 50 - 10 = 40 XC = 10 subtracted from 100 = 100 - 10 = 90 CM = 100 subtracted from 1000 = 1000 - 100 = 900 If you need to, divide a number into groups of digits to understand it better. Always make sure you catch any "subtraction problems" with a smaller digit in front of a larger, and include both the digits into the same group.  For example, try to read DCCXCIX. There are two places in the number with a small digit in front of a larger one: XC and IX. Keep the "subtraction problems" together and break up the other digits separately: D + C + C + XC + IX. Translate into ordinary numerals using the subtraction rules when necessary: 500 + 100 + 100 + 90 + 9 Add them all together: DCCXCIX = 799. If a horizontal line is drawn across the top of a number, multiply the value by 1,000. Be careful, though: many people draw a horizontal line above and below every roman numeral, just as decoration.  For example, an X with a "–" written over it means 10,000. If you're not sure whether the bar is just decoration, think about the context. Would a general send in 10 soldiers, or 10,000? Would a recipe use 5 apples, or 5,000?


Problem: Write an article based on this summary: Chat online. Use international calling cards Utilize email and social media to communicate.

Answer: Avoid excessive international calling fees by using video chatting applications like Skype or Google Voice. To avoid the international fee, make sure that both people have an account registered with the application and use the local internet to connect to one another. You can also use chat programs to talk through text rather than making expensive calls. Popular chat applications include Gchat, Yahoo Messenger, and Facebook Messenger. . You can purchase an international calling card at some department stores, online, or through your phone provider. You can load money onto these cards and use them to make calls to the UK at a much lower rate than long-distance calls typically cost. While sometimes a slower means of communication, email and social media is a great way to stay in contact with people without having to call them often. Consider using this option if you want to save some money.


Problem: Write an article based on this summary: Open your iPad's App Store. Tap Updates. Tap Purchased. Tap Not on This iPad. Find the app you wish to re-download. Tap the "Download" button.

Answer: It's a blue app with a white "A" made of writing utensils that's likely on the Home Screen. This option is in the bottom-right corner of the screen. You'll see this bar at the top of the screen. It's a tab on the top-right side of the screen. On some iPads, you may first need to tap your name. You may have to scroll down to find it since apps stored here are arranged in the order in which you downloaded them. It's the cloud-shaped icon with a downward-facing arrow that's to the right of your selected app. Tapping this will immediately prompt the app to download back onto your iPad, though you may first need to enter your Apple ID password to confirm this decision.


Problem: Write an article based on this summary: Click the Start button. Click All programs. Click Windows Update. Click Check for updates. Click Install updates if updates are available. Follow the on-screen instructions to finish updating your computer.

Answer:
It’s usually at the bottom-left corner of the screen. A list of all apps will appear. This launches the Windows Update tool. Wait as the Windows Update tool scans for updates that you have not installed. If Windows finds updates for you to install, you’ll see the number of updates appear near the top of the window. Clicking the button will begin the installation. Most updates require that you restart your computer to complete the installation. Once the computer comes back up, the computer will be up to date. Depending on the types of updates available for your computer, you may have to run the update tool a second time to finish the installation. Keep your eye on the system tray (the area where the clock is) when the computer comes back up—if you see a message that says updates must be installed (or an icon of a yellow or red shield with an ″!″ inside), click it, and then follow the on-screen instructions.