Understanding Three-Digit Addition

The video tutorial covers the process of three-digit addition, focusing on the importance of adding the ones, tens, and hundreds columns in sequence. It demonstrates several problems, some requiring regrouping, and provides tips for handling larger numbers and zeros. The instructor encourages active participation and offers strategies to simplify the addition process.

What should you have ready before starting the lesson?

• A piece of paper

• A calculator

• A ruler

• A textbook

Which column do you add first in three-digit addition?

• Thousands

• Tens

• Hundreds

• Ones

In the problem 324 + 252, what is the sum of the ones column?

• 5

• 6

• 7

• 8

What is the sum of 324 + 252?

• 580

• 578

• 582

• 576

In the problem 426 + 356, what is the sum of the ones column?

• 12

• 11

• 13

• 10

What do you do with the '1' in the number 12 when adding 426 + 356?

• Subtract it

• Add it to the hundreds

• Carry it to the tens

• Ignore it

What is the sum of 426 + 356?

• 784

• 786

• 782

• 780

In the problem 489 + 273, what is the sum of the tens column after regrouping?

• 17

• 16

• 15

• 14

What is the sum of 489 + 273?

• 764

• 766

• 762

• 760

In the problem 786 + 344, what is the sum of the ones column?

• 8

• 11

• 9

• 10