Column Addition with 2-Digit and 1-Digit Numbers

This video tutorial teaches how to add 2-digit and 1-digit numbers using column addition. It emphasizes the importance of aligning numbers correctly in columns, starting from the right-hand side, and carrying over tens when necessary. The tutorial includes three examples: adding 17 and 6, 15 and 9, and 18 and 7, demonstrating the step-by-step process of column addition.

What is the first step when adding numbers using column addition?

• Start from the left-hand side

• Add the tens first

• Align the numbers correctly

• Ignore the ones column

In the example of adding 17 and 6, what is the result after adding the ones column?

• 13

• 14

• 11

• 12

When adding 15 and 9, what do you do after adding the ones column?

• Carry over the ten to the tens column

• Multiply the result by 2

• Divide the result by 2

• Subtract the tens

What is the sum of 15 and 9 using column addition?

• 22

• 23

• 24

• 25

In the example of adding 18 and 7, what is the final result?

• 24

• 25

• 26

• 27