Column Addition Concepts and Techniques

This video tutorial teaches how to add two-digit numbers using column addition. It emphasizes the importance of aligning numbers correctly, starting from the right-hand side, and carrying over when necessary. Three examples are provided: 17 + 16, 25 + 16, and 28 + 24, each demonstrating the step-by-step process of column addition.

What is the first step in column addition?

• Add the tens first

• Align the numbers correctly

• Subtract the ones

• Multiply the digits

In the example 17 + 16, what is the sum of the ones column?

• 15

• 12

• 13

• 14

What do you do with the '1' from the sum of the ones column in 17 + 16?

• Subtract it from the tens column

• Carry it to the tens column

• Add it to the ones column

• Ignore it

In the example 25 + 16, what is the sum of the tens column after carrying over?

• 6

• 4

• 5

• 3

What is the final answer for the addition of 25 + 16?

• 39

• 40

• 42

• 41

In the example 28 + 24, what is the sum of the ones column?

• 12

• 11

• 13

• 10

What is the final answer for the addition of 28 + 24?

• 53

• 51

• 52

• 50

What is the purpose of carrying over in column addition?

• To make the numbers smaller

• To ensure correct addition of digits

• To subtract from the next column

• To divide the numbers

In column addition, which side do you start adding from?

• Top

• Right

• Middle

• Left

What is the sum of the tens column in the example 28 + 24 after carrying over?

• 6

• 7

• 5

• 4