The video tutorial introduces the concept of expanded notation, explaining how to express numbers as the sum of the place values of their digits. It uses examples of balloon-bursting games to illustrate the expanded and standard forms of numbers 421, 125, and 359. The tutorial emphasizes understanding the place value of each digit and converting between expanded and standard forms.

What is expanded notation?

• Writing a number as a product of its digits

• Writing a number as the sum of the place value of its digits

• Writing a number in words

• Writing a number as a fraction

In the number 421, what is the place value of the digit 4?

• Four thousand

• Four hundred

• Forty

• Four

How do you write the number 421 in expanded form?

• 400 + 20 + 1

• 4 + 2 + 1

• 40 + 2 + 1

• 4000 + 200 + 10

What is the standard form of the expanded notation 400 + 20 + 1?

• 412

• 124

• 142

• 421

In the number 125, what is the place value of the digit 2?

• Two

• Twenty

• Two hundred

• Two thousand

How do you write the number 125 in expanded form?

• 100 + 20 + 5

• 10 + 2 + 5

• 1 + 2 + 5

• 1000 + 200 + 50

What is the standard form of the expanded notation 100 + 20 + 5?

• 152

• 125

• 215

• 512

In the number 359, what is the place value of the digit 5?

• Five thousand

• Five

• Fifty

• Five hundred

How do you write the number 359 in expanded form?

• 300 + 50 + 9

• 30 + 5 + 9

• 3 + 5 + 9

• 3000 + 500 + 90

Who won the balloon bursting competition?

• Annie

• Amy

• Alex

• Andy