Best Answer

It involves lots of carrying :) Ok, here's how: Imagine you have the problem 20+10. You might automatically know that the answer is 30, but I'll show you how. Line the problem up vertically (you may not want to do this at first, but trust me, it's a lot easier):

20

+ 10

____

Now, the first thing you'd do would be to add the top number to the bottom number in the ONES COLUMN ONLY. Always, always, always, start from the right. So, what you have is: 0+0. Which equals 0. So now, your problem looks like this:

20

+ 10

____

0

The next thing you would do would be to do the same thing in the tens column. And 2+1 = 3.

20

+ 10

____

30

That's the simple version. Now, what if you have a problem that looks like this: 35+26. So let's set it up vertically again.

35

+ 26

____

When you have a number on top that's bigger than the one in the same column on the bottom, you do something called carrying. It looks like this:

(1)35

+ 26

____

We know that 5+6=11, right? So we put the 1 in the ones column under the bar.

35

+ 26

_____

1

Now what do you do with your other 1? The other 1 goes on top of the 3 in 35, and you add it like 1+3, which equals four. And we have:

45

+ 26

_____

1

Remember, you've already added the 5 and 6, so disregard them for now.

4

+2

___

1

4+2 = 6. So, place the 6 in the tens column, and here's your answer:

35

+ 26

____

61

Hope this helps!

Q: How do you find the sum of a two digit addends?

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Continue Learning about Math & Arithmetic

The sum could be anything, but it would be a positive number if the two addends are positive.

You add two addends to get a sum. For example, in 3 + 5 = 8, 3 and 5 are addends, and 8 is the sum.

it is sum

sum and addends

129

Related questions

The sum could be anything, but it would be a positive number if the two addends are positive.

You add two addends to get a sum. For example, in 3 + 5 = 8, 3 and 5 are addends, and 8 is the sum.

it is sum

sum and addends

129

The addends

In 1 + 2 = 31 and 2 are the addends and 3 is the sum of the two addends.

sum

The numbers being added together are called addends. The answer is called the sum. 4+2=6 Four and two are addends and six is the sum.

The units digit of a two digit number exceeds twice the tens digit by 1. Find the number if the sum of its digits is 10.

It depends on what the sum is going to be.

90