__Objective:__

At the end of the lesson, students should be able to add several two and three digit numbers together.

Addition is done using the plus **(+)** sign. The answer we get by adding two numbers is called the **SUM.**

__Example 1__

Add 83 to 21

Start adding from the right side. 3 and 1 units are 4 units. 8 and 2 tens make 10 tens. We have 10 tens and 4 units that is 104.

__Example 2__

Start your addition from the right side. **4** and **7** units make **11** units which is 1 Ten 1 unit. Write 1 and carry 1 to the Tens column. **1 + 5 + 4** Tens make 10 Tens which is **1 Hundred**. Write 0 and carry 1 to the Hundreds column. 1 + 8 + 1 Hundreds will be 10 Hundreds which is 1 Thousand. So you write 10. Your answer now becomes 1001.

__Example 3__

361 + 245 + 29

This can be arranged vertically as

** **

**1 + 5 + 9** units make **15 units** which is 1 **Ten and 5 units.** Write 5 in the units column. Carry 1 Ten to the Tens column. **1 + 6 + 4 + 2** make 13 Tens which is **1 Hundred and 3 Tens.** Write 3 in the Tens column and carry **1 Hundred** to the Hundreds column.** 1 + 3 + 2** Hundreds make 6 Hundreds. Write 6 in the Hundreds column. The answer becomes **635**.

__Example 4__

Lesson Content

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