Adding Hundreds

Adding Hundreds

Adding two three digit numbers (for example 600 + 500) with paper and pencil involves several steps:

• 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.

600
500

• Add the two ones place digits. (0 + 0 = 0).

600
500
  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

 600
 500
  00

• Add the numbers in the hundreds place column (6 + 5 = 11) and place the answer below the line and to the left of the ones place sum

  600
  500
 1100