Adding whole numbers is what this lesson will teach you. Also there is a calculator to help you practice.Adding whole numbers means that we are combining numbers to form a total.

Each number being added is called an

Take a close look at the following addition problems.

You got it right! It is the first one. 4 + 6 is not equal to 11.

4 + 6 = 10.

Now, let us move on to something more interesting, adding numbers with two digits.

When adding two-digit numbers, add the ones first. Then, add the tens.

Let us try to add 36 to 17 using expanded notation

36 =

adding the ones ( 6 and 7) gives 13 and 13 =

Adding the tens (

Let us add 58 to 46

58 =

Adding the ones (8 and 6 ) gives 14 and 14 =

Adding the tens (

We can accomplish the same by arranging the numbers in vertical columns as shown below

In the above, we add the ones column first. Then, we carry over the tens to the tens column. The 1 that we carry over has a place value of 10. However, there is no need to write 10 because as we saw before in place value putting a 1 here in the tens place means that there is 1 ten.