Adding Two-Digit Numbers
Watch this video to see how we put numbers together!
Note: All Khan Academy content is available for free at www.khanacademy.org
The Secret of Regrouping
Sometimes, the "Ones" column gets too full (10 or more). We have to move the extra to the "Tens" column!
1
Add the Ones: Always start on the right side.
2
Regroup: If the sum is 10 or more, carry the 1 to the top of the tens column.
3
Add the Tens: Don't forget to add the 1 you carried!
Solve the problem:
24
15+
🦸♂️
Addition Hero!
You can add two-digit numbers like a pro. Your math powers are growing!