# Use Knowledge of Place Value to Add Two 3-Digit Numbers

In this worksheet, students will add together two numbers - both of which have three digits. They use a formal written/column method.

Key stage:  KS 2

Curriculum topic:   Number: Addition and Subtraction

Curriculum subtopic:   Add/Subtract up to Four-Digit Numbers

Popular topics:   Addition worksheets, Place Value worksheets

Difficulty level:

#### Worksheet Overview

In this activity, we will be looking at how to use our knowledge of place value to add three-digit numbers.

Example

 + 1 5 8 9 6 1

We split the two numbers into hundreds, tens and ones.

First, add the hundreds: 100 + 900 = 1,000

Next, add the tens:  50 + 60 = 110

Finally, add the ones: 8 + 1 =

Now we can put these numbers together:

 + 1 0 0 0 1 1 0 9 1 1 1 9

So we now have 1,119 in the answer box.

Do you feel happy with that?

Let's have a go at some questions now.

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