Add Two-Digit Numbers Without Regrouping
Adding 2-Digit Numbers: Learn
How to add two-digit numbers (for example 42 + 53).
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Place one number above the other number so that the tens' place digits
and ones' place digits are lined up. Draw a line under the bottom number.
4 2 + 5 3 -
Add the two ones' place digits. (2 + 3 = 5). Place the five below the
line in the ones' place column.
4 2 + 5 3 5 -
Add the numbers in the tens' place column (4 + 5 = 9) and place the
answer below the line and to the left of the ones' place sum.
4 2 + 5 3 9 5
Adding Two-Digit Numbers: Practice
What is the Sum of the two Numbers?
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