Understanding Number Forms

The video tutorial explains how to convert numbers into different forms: numerical, expanded, place value, and word forms. It uses examples like 245, 543, 860, and 991 to demonstrate these conversions. The tutorial emphasizes the importance of not using 'and' in word names and provides guidance on writing expanded forms as sums of products.

What is the place value form of the number 245?

• 2 in tens, 4 in hundreds, 5 in ones

• 5 in hundreds, 4 in tens, 2 in ones

• 4 in hundreds, 2 in tens, 5 in ones

• 2 in hundreds, 4 in tens, 5 in ones

How should the expanded form of 245 be written for homework?

• 2 x 100 + 4 x 10 + 5 x 1

• 2 + 4 + 5

• 245

• 200 + 40 + 5

What is the word form of the number 245?

• Two hundred forty five

• Two hundred and forty-five

• Two hundred forty-five

• Two hundred and forty five

Given the expanded form 5 x 100 + 4 x 10 + 3 x 1, what is the numerical form?

• 534

• 453

• 543

• 345

What is the word form of the number 543?

• Five hundred and forty three

• Five hundred forty three

• Five hundred and forty-three

• Five hundred forty-three

What is the numerical form of the place value: 8 in hundreds, 6 in tens, 0 in ones?

• 806

• 860

• 680

• 608

How can the expanded form of 860 be simplified?

• 80 + 60

• 8 x 100 + 6 x 10

• 8 x 100 + 6 x 10 + 0 x 1

• 800 + 60 + 0

What is the numerical form of the word name 'nine hundred ninety-one'?

• 911

• 991

• 999

• 919

What is the expanded form of the number 991?

• 9 x 10 + 9 x 1 + 1 x 100

• 9 x 100 + 1 x 10 + 9 x 1

• 900 + 90 + 1

• 9 x 100 + 9 x 10 + 1 x 1

What is the place value form of the number 991?

• 9 in hundreds, 9 in tens, 1 in ones

• 9 in hundreds, 1 in tens, 9 in ones

• 1 in hundreds, 9 in tens, 9 in ones

• 9 in tens, 9 in hundreds, 1 in ones