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We'll start off simple so you can see how we would set up our problem. You simply add down the column to get the result.
If the numbers add up to more than 10, we just add the numbers together and we still put the result below.
Now it starts to get a little more complicated but here we learn one of the core concepts in math: No problem is too difficult if you learn the steps and follow them. When adding we start at the right-most column and add it down. So we add 4 and 2 to get 6 and we place the result directly under the column we are adding.
Finally we add the left column. 2 + 3 is 5. We write the result below and we have our final answer of 56. Remember to work the columns from right to left!
The next part of the lesson is learning how to carry extra digits over if our column adds to 10 or more. With larger (2-digit or greater) numbers you can't just write the leading digit like we did in the second example above. We need that space to write the result of the next column. We still have to add it in to the next column so we'll carry it up and write it in at the top. Take a look at our example. So in this example, 6 + 7 = 13. We put the 3 (ones digit) below the line and carry the 1 (tens digit) and add it to the top of the next column.
When we add the next column, the 1 we placed at the top gets added in the column as well. 1 + 5 + 8 = 14. We place the 4 underneath and carry the 1 to the top of the final column.
We continue this process until we run out of columns.
This last example is a bit trickier but still works the same. Just remember your steps and no problem is too big! 8 + 9 + 6 = 23. Write the 3 underneath and carry the 2. The fact that we're carrying a 2 instead of a 1 makes no difference.
2 + 7 + 4 + 5 = 18.
1 + 6 + 5 + 8 = 20. Since there are no more columns to carry the 2 we simply write the complete number below.
