Expanded Notation Concepts for 3rd Graders

The video tutorial introduces expanded notation, starting with a review of place values from ones to hundred thousands. It explains the value of each place and demonstrates how to write numbers in expanded notation using examples of four, five, and six-digit numbers. The tutorial emphasizes the importance of correct comma placement and provides step-by-step guidance on multiplying digits by their place values.

What is the smallest place value we work with in third grade?

• Hundreds

• Tens

• Ones

• Thousands

What is the value of the tens place?

• 10

• 100

• 1000

• 1

What is the value of the hundred thousands place?

• 1

• 100,000

• 10,000

• 1,000

How do you write the number 4729 in expanded notation?

• 4 x 100 + 7 x 10 + 2 x 1 + 9 x 0.1

• 4 + 7 + 2 + 9

• 4 x 1000 + 7 x 100 + 2 x 10 + 9 x 1

• 4000 + 700 + 20 + 9

In the number 4729, what is the value of the digit in the hundreds place?

• 4

• 9

• 2

• 7

When writing a number in expanded notation, what symbol is used to separate different places?

• Comma

• Semicolon

• Plus sign

• Asterisk

How do you write the number 15,302 in expanded notation?

• 15,000 + 300 + 2

• 1 x 10,000 + 5 x 1,000 + 3 x 100 + 0 x 10 + 2 x 1

• 1 x 10,000 + 5 x 1,000 + 3 x 100 + 2

• 1 x 10,000 + 5 x 1,000 + 3 x 100 + 2 x 1

In the number 15,302, which digit can be skipped in expanded notation?

• 0

• 1

• 3

• 5

How do you write the number 376,519 in expanded notation?

• 3 x 100,000 + 7 x 10,000 + 6 x 1,000 + 5 x 100 + 1 x 10 + 9 x 0.1

• 3 x 100,000 + 7 x 10,000 + 6 x 1,000 + 5 x 100 + 1 x 10 + 9 x 1

• 3 x 100,000 + 7 x 10,000 + 6 x 1,000 + 5 x 100 + 1 x 10 + 9

• 300,000 + 70,000 + 6,000 + 500 + 10 + 9

In the number 376,519, what is the value of the digit in the ten thousands place?

• 5

• 6

• 7

• 3