** **The mathematical operation that combines two separate quantities into single sum is called **addition**. The mathematical symbol used for addition is** "+"**.

The answer for adding two numbers is called as sum. **For example**, adding 3 + 3 is equal to 6.

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Below are the examples on adding numbers -

Step 1:

Let us write the given problem as 25 + 63

Write the given numbers one under the other like,

2 5

Step 2:

Add the one’s place we get,

5 + 3 = 8

Step 3:

Add the tens place with the carry of one’s place, we get,

2 + 6 = 8

Step 4:

Re-group the numbers, which is grouping the tens place and one’s place we get,

Here, 8 is in the tens place and 8 is in the one’s place.

= 88

Therefore, the solution for adding 25 and 63 is 88.

Step 1:

Let us write the given problem as 35 + 37.

Write the given numbers one under the other like,

3 5

Step 2:

Add the one’s place we get,

5 + 7 = 12 = 2 (carry 1)

Step 3:

Add the tens place with the carry of one’s place, we get,

1 + 3 + 3 = 7

Step 4:

Regroup the numbers, which is grouping the tens place and one’s place we get,

Here, 7 is in the tens place and 2 is in the one’s place.

= 72

Therefore, the solution for adding 35 and 37 is 72.

Step 1:

Let us write the given problem as 27 + 36.

Write the given numbers one under the other like,

2 7

Step 2:

Add the one’s place we get,

6 + 7 = 13 = 3 (carry 1)

Step 3:

Add the tens place with the carry of one’s place, we get,

1 + 2 + 3 = 6

Step 4:

Regroup the numbers, which is grouping the tens place and one’s place we get,

Here, 6 is in the tens place and 3 is in the one’s place.

6 + 3 = 63

Therefore, the solution for adding 78 and 47 is 125.

Step 1:

Let us write the given problem as 77 + 66.

Write the given numbers one under the other like,

7 7

Step 2:

Add the one’s place we get,

7 + 6 = 13 = 3 (carry 1)

Add the carry 1 to the tens place.

Step 3:

Add the carry 1 of one’s place with the tens place we get,

1 + 7 + 6 = 14

Step 4:

Regroup the numbers, which is grouping the tens place and one’s place we get,

Here, 14 is in the tens place and 3 is in the one’s place.

14 + 3 = 1 + 4 + 3 = 143

Therefore, the solution for adding 77 and 66 is 143.

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