How to add two-digit numbers (for example 600 + 500).
• Place one number above the other so the hundreds place digits, the tens place digits and ones place digits are lined up. Draw a line under the bottom number.  6 0 0 + 5 0 0
• Add the two ones place digits. (0 + 0 = 0).  6 0 0 + 5 0 0 0
• Add the numbers in the tens place column (0 + 0 = 0) and place the answer below the line and to the left of the ones place sum.  6 0 0 + 5 0 0 0 0
• Add the numbers in the hundreds place column (6 + 5 = 11) and place the answer below the line and to the left of the tens place sum.  6 0 0 + 5 0 0 1 1 0 0

#### What is the Sum of the two Numbers?

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