Understanding Expanded Form and Place Value

This video tutorial teaches how to read and write numbers in expanded form using arrow cards. It begins with an introduction to expanded notation and a review of place value using numbers like 34 and 134. The tutorial demonstrates the use of arrow cards to understand place value with the number 243 and highlights common mistakes in reading and writing three-digit numbers. It explains how to break down numbers into hundreds, tens, and ones, providing examples of numbers in expanded form and their equations. The importance of zero in numbers is also discussed. The lesson concludes with a summary of the key concepts covered.

What is the expanded form of the number 34?

• 3 + 4

• 34 + 0

• 40 + 3

• 30 + 4

How should the number 239 be correctly read?

• Two thirty-nine

• Two hundred thirty-nine

• Two hundred and thirty-nine

• Two hundred and thirty-nine and zero

Which of the following is the correct way to write 285?

• 200 + 80 + 5

• 2 + 8 + 5

• 285

• 2 0 0 8 5

What is the expanded form of 358?

• 300 + 50 + 8

• 3 + 5 + 8

• 350 + 8

• 300 + 58

What does the zero represent in the number 400?

• Zero hundreds

• Zero tens

• Zero ones

• Zero thousands

How is the number 246 represented in expanded form?

• 200 + 46

• 200 + 40 + 6

• 240 + 6

• 246

What is the expanded form of 453?

• 450 + 3

• 400 + 50 + 3

• 400 + 53

• 4 + 5 + 3

Which number is represented by 500 + 2?

• 502

• 52

• 520

• 5002

What is the expanded form of 760?

• 700 + 60

• 700 + 6

• 760

• 70 + 60

How is the number 415 represented in expanded form?

• 400 + 10 + 5

• 415

• 410 + 5

• 400 + 15