Expanded Notation: Reading and Writing Numbers Using Arrow Cards

This video tutorial teaches how to read and write numbers in expanded form using arrow cards. It begins with a review of place value, demonstrating with numbers like 34 and 134. The use of arrow cards is shown to help understand place value, using examples such as 243. Common mistakes in reading and writing numbers are addressed, emphasizing the correct way to interpret and write numbers. The tutorial breaks down numbers into hundreds, tens, and ones, and explains how to write them as equations in expanded form. The role of zero in numbers is also discussed. The lesson concludes with a recap of the key points covered.

What is the expanded form of the number 134?

• 1 + 3 + 4

• 100 + 30 + 4

• 130 + 4

• 100 + 34

Which of the following is an incorrect way to read the number 239?

• Two hundred thirty-nine

• Two hundred thirty-nine

• Two hundred and thirty-nine

• Two hundred thirty nine

How should the number 285 be correctly written in expanded form?

• 200 + 80 + 5

• 20 + 8 + 5

• 200 + 85

• 2 + 8 + 5

What does the zero represent in the number 400?

• Zero tens

• Zero hundreds

• Zero tens and zero ones

• Zero ones

Which of the following is the correct expanded form of 502?

• 500 + 2

• 50 + 2

• 5 + 0 + 2

• 500 + 0 + 2