# Addition – Definition with Examples

The addition is taking two or more numbers and adding them together, that is, it is the total sum of 2 or more numbers.

Example:

How many apples are there in all?

There are 7 apples in one basket and 4 apples in the other. So, we add 7 and 4 to find the total number of apples.

To add 7 and 4, we can count forward 4 steps from 7

The symbol used to indicate Addition is + (plus symbol).

So, 7 and 4 can be written as 7 + 4

An addition sentence is a mathematical expression that shows two or more values added together and their sum.

We can write the mathematical expression for 7 plus 4 equals 11 as:

The addition of small numbers can be done using your fingers too.

Examples:

Number charts are another way to add numbers.

Example: Add 57 and 16 using a hundred grid.

Numbers can also be added vertically.

Let’s add 57 and 16 vertically.

The numbers with more than 2 digits can also be added vertically. We always start adding from the ones digit and move towards the digits at the highest place.

Example 1: Marie bought a designer handbag for $231 and a belt for$199. How much did she spend on both?

To find the total cost, we need to add 231 and 199

We can add the numbers vertically as:

So, Marie spent \$430

Example 2: There are 2415 blue seats and 2770 red seats in a stadium. How many blue and red seats are there altogether?

Total number of seats = 2415 + 2770

= 5185 seats

## Practice Problems

### 1Which number can make the following sentence true: 10 + ___ > 25

5
10
15
20
CorrectIncorrect
10 + 20 = 30 & 30 > 25

512
5120
521
620
CorrectIncorrect
5 hundreds = 500
12 tens = 120
500 + 120 = 620

### 3What is 100 added to 4792?

5792
4802
4892
4793
CorrectIncorrect
4792 + 100 = 4892

380
308
3008
1100
CorrectIncorrect
300 + 008 = 308