Addition of Two and Three-Digit Numbers

This video tutorial covers the basics of addition, focusing on adding two and three-digit numbers without regrouping. It explains the terms used in addition, such as add-ins and sum, and provides step-by-step examples for both two-digit and three-digit addition. The tutorial emphasizes starting from the rightmost column and counting objects to find the sum. It concludes with encouragement for viewers to practice on their own.

What is the main focus of this lesson?

• Subtracting two-digit numbers

• Dividing three-digit numbers

• Adding two and three-digit numbers without regrouping

• Multiplying two-digit numbers

What is the process of combining objects called?

• Subtraction

• Division

• Multiplication

• Addition

In addition, what are the numbers being added called?

• Factors

• Addends

• Quotients

• Products

What is the result of an addition operation called?

• Sum

• Product

• Difference

• Quotient

When adding two-digit numbers, where should you start?

• Tens column

• Thousands column

• Hundreds column

• Ones column

What is the sum of 72 and 26?

• 98

• 78

• 88

• 108

In the example of adding 14 and 52, what is the sum?

• 56

• 66

• 86

• 76

When adding three-digit numbers, which column do you start with?

• Hundreds column

• Ones column

• Tens column

• Thousands column

What is the sum of 244 and 522?

• 876

• 666

• 766

• 776

In the example of adding 634 and 225, what is the sum?

• 1059

• 959

• 759

• 859