Article: Write them so the 3 is directly above the 2, the 1 is above the 0, the 7 is above the 5, and the 4 is above a blank space. You can write a 0 underneath the 4 if it helps you keep track of which number is above which other number. You can always add zeros in front of a number without changing it. Make sure to add it in front of the number and not after it. Always start from the right. Solve for 3-2, 1-0, 7-5, and 4-0, putting the answer to each problem directly underneath the two numbers in that subtraction problem. You should end up with the answer, 4,211. These numbers are the same length, so you can line them up easily. This problem will teach you something new about subtracting integers, if you didn't know it already. This is 4 - 8. This is tricky, since 4 is smaller than 8, but don't use negative numbers. Instead, follow these steps:  On the top line, cross out the 2 and write 1 instead. The 2 should be directly to the left of the 4. Cross out the 4 and write 14. Do this in a small space so it's clear the 14 is entirely above the 8. You can also just write a 1 in front of the 4 to make it 14 if you have the room. What you just did is "borrow" a 1 from the tens place, or second column from the right, and turn it into 10 in the ones place, or furthest column to the right. one 10 is the same as ten 1s, so this is still the same problem. You should now have a 6 on the far right of the line where your answer will be. This should now be 1 - 1, which equals 0. Your answer so far should be 06. 9 - 5=4, so your final answer is 406. Say you're asked to solve 415,990 - 968,772. You write the second number underneath the first, and then realize the number at the bottom is larger! You can tell this immediately by the first digits on the left: 9 is smaller than 4, so the number beginning with 9 has to be larger. Make sure to line the numbers up correctly before comparing them. 912 is not bigger than 5000, which you can tell if you've lined them up correctly, since the 5 is above nothing at all. You can add leading zeros if it helps, for instance writing 912 as 0912 so it lines up well with 5000. Whenever you subtract a number from a smaller number, you'll get a negative number as your answer. It's best to write this sign before solving, so you don't forget to include it. Your answer will be negative, as you showed by writing a - sign. Do not try to subtract the larger number from the smaller and just make it negative; you will not get the wrong answer. The new problem to solve is: 968,772 - 415,990 = - ? Look at the Tips for the answer after trying to solve it.
Question: What is a summary of what this article is about?
Write the subtraction problem 4713 - 502 with the first number above the other. Subtract each bottom number from the number directly above it, starting from the right. Now write down the problem 924 - 518 in the same way. Learn how to solve the first problem, on the far right. Now solve the problem 14 - 8 and write the answer under the right column. Solve the next column to the left using the new number you wrote down. Finish the problem by solving the last, left column. Now begin a problem where you subtract a larger number from a smaller number. Write the smaller number underneath the larger and add a - sign in front of the answer. To find the answer, subtract the small number from the larger one and remember to include the - sign.

Problem: Article: It should be a large square divided into 10 vertical sections (columns) and 10 horizontal sections (rows) to make 100 smaller squares. Number each column from 1 to 10 from left to right. Number each row from 1 to 10 from top to bottom. Next, fill in each square with the number you get when you multiply the number of the row with the number of the column. For instance, the square in row 2 and column 3 should be 6, because 2 times 3 is 6.  Put this chart somewhere you’ll see it often, like on your fridge or in your bedroom. If you are memorizing up to the 12s instead of the 10s, give your chart 12 columns and 12 rows, so that you have a total of 144 squares. This is called “skip-counting.” You start with the number you’re counting by, then keep adding that same number. For instance, if you were skip-counting by 3s, you would say “3, 6, 9, 12…” because each of those numbers is what you get if you add a 3. This will help you remember which numbers you get when you multiply by a 2, 3, or 4. Look at your times table and read the column for 2, 3, and 4 out loud. For instance, you would say “2 times 1 is 2, 2 times 2 is 4, 2 times 3 is 6,” and so on. You should practice this for about 5-10 minutes twice a day until you can do it easily without looking at the table. Start at the bottom of each column and start reciting backwards. For instance, for the 2s you would start with “2 times 10 is 20, 2 times 9  is 18,” etc. Do this until you can say them backwards easily without checking the table. Have a friend ask you multiplication questions about the numbers 2, 3, and 4. Have them start by asking you in order (“What is 2 times 1? What is 2 times 2? What is 2 times 3?" etc.). Do that for 5-10 minutes twice a day, until you can answer each question easily, then have them start asking you the same questions but out of order (“What is 3 times 7? What is 2 times 5?" etc.). Instead of saying “2 times 3 equals what?” they will say “6 equals 2 times what?” This will help you really understand each multiplication problem back to front. This is sometimes easier when you can look at the numbers, since you will be used to seeing certain numbers together. Try doing written problems too. Cut triangles out of thick construction paper and write the 2 numbers you’re multiplying on 2 of the corners, with the answer on the third corner. That way, you can quiz yourself by looking at 2 corners and figuring out what’s on the third corner. You should only do this once you’re comfortable answering multiplication questions backwards. This exercise is also helpful for learning division. You can also find triangular multiplication flashcards to print out here: http://donnayoung.org/math/tricard1bl.htm Divide the remaining columns up and memorize the 5s, 6s, and 7s, then the 8s, 9s, and 10s (and the 11s and 12s if you're learning them). Don’t stop practicing columns once you’ve learned them!
Summary: Make a times table chart. Practice counting up by 2s, 3s and 4s. Practice reciting the 2, 3 and 4 times columns in order. Learn to say the 2s, 3s, and 4s backwards. Ask someone to quiz you on what you just learned. Have someone ask you multiplication questions backwards. Write multiplication problems on triangular flashcards. Repeat this process for the rest of the times table.

The best way to deal with keloids is to avoid getting them in the first place.  People who already have keloids, or who are very prone to getting them, can take special precautions with skin injuries to prevent keloid scares from forming. Pay attention to even minor skin injuries, and make sure that any wounds are thoroughly cleaned.  Apply an antibiotic cream and bandage to any open wounds, and change the bandage frequently.  Wear loose clothing over the injury site that will not irritate the skin further. The silicon gel sheets mentioned above work well to prevent keloids from forming. Piercings and even tattoos can lead to keloids in some individuals.  If you have developed keloids in the past, or have a family history of keloids in your family, you may want to avoid piercings and tattoos, or consult with a dermatologist before proceeding.
++++++++++
One-sentence summary --
Understand the importance of prevention. Take care of skin injuries to prevent infection and scarring. Avoid trauma to your skin if you are prone to forming keloids.