This document provides instructions for adding double digit numbers to single and double digit numbers. It explains that when adding a double digit number to a single digit number, you add the ones place numbers first and then bring down the leftmost number. When adding two double digit numbers, you add the ones places first, put the sum under the line, then add the tens places and put that sum underneath in the tens column. The document aims to teach basic addition skills through examples of single and double digit number addition problems.

1. Double Digit Addition

2. Objectives Learn how to add double digit numbers to single digit numbers Learn how to add double digit number to double digit numbers Practice simple and new addition.

3. Single and Double Add the Right two numbers first. Next bring down the number furthest left. This is our problem. A double digit number plus a single digit number.

4. Double and Double This is our problem. A double digit number added to another double digit number. First add the ones places. 2 + 3 = 5. Put 5 under the line. Next add the tens places. 1 + 1 = 2. Put the 2 under the line underneath the tens place.

5. Review