Adding 4Digit Numbers
Adding 4Digit Numbers: Learn
How to add threedigit numbers (for example 4529 + 6733).

Place one number above the other so that the thousands', hundreds', tens'
and ones' places are lined up. Draw a line under the bottom number.
4 5 2 9 + 6 7 3 3 
Add the ones place digits (9 + 3 = 12). This number is larger than 10 so
place a one above the tens place column and place the two below the line
in the ones place column.
1 4 5 2 9 + 6 7 3 3 2 
Add the tens place digits (1 + 2 + 3 = 6) and place the answer below the
line and in the tens place column.
1 4 5 2 9 + 6 7 3 3 6 2 
Add the numbers in the hundreds place column (5 + 7 = 12) and place the
2 below the line and before the other number below the line. Place the 1
from the twelve above the thousands place column.
1 4 5 2 9 + 6 7 3 3 2 6 2 
Add the digits in the thousands' place column (1 + 4 + 6 = 11) and place
the answer below the line in the thousands' place column.
1 5 2 9 + 7 3 3 1 1 2 6 2
Adding FourDigit Numbers: Practice
What is the Sum of the two Numbers?
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