Understanding Decimals and Expanded Form

In this video, Mr. J explains how to write decimals in standard form. The lesson covers converting decimals from word form and expanded form to standard form. The video provides step-by-step instructions and examples for each conversion type, ensuring students understand the placement of digits in decimal numbers. The lesson concludes with a review of the concepts covered.

What does writing a decimal in standard form mean?

• Using both words and digits

• Using symbols other than numbers

• Using only words to describe the number

• Using only digits to represent the number

How should 62 thousandths be written in standard form?

• 0.62

• 0.062

• 62.0

• 0.0062

In the number 3 and 16 hundredths, what does the 'and' represent?

• A hyphen

• A decimal point

• A space

• A comma

What is the correct standard form for the expanded form 40 + 1 + 0.03 + 0.007?

• 41.37

• 40.137

• 41.307

• 41.037

In the expanded form 40 + 1 + 0.03 + 0.007, what is the value of the digit in the hundredths place?

• 1

• 7

• 3

• 0

How is the number 850.29 represented in expanded form using fractions?

• 800 + 50 + 0.2 + 0.09

• 800 + 5 + 0.2 + 0.09

• 800 + 50 + 0.02 + 0.9

• 800 + 50 + 2/10 + 9/100

In the number 850.29, which digit is in the tenths place?

• 9

• 5

• 2

• 8

What placeholder is needed if there is no digit in the ones place in a decimal?

• 1

• 0

• None

• 2

What is the purpose of using a placeholder zero in decimals?

• To increase the value of the number

• To ensure digits are in the correct place

• To decrease the value of the number

• To make the number look longer

What is the final step in converting a number from expanded form to standard form?

• Removing all zeros

• Ensuring all digits are in their correct place

• Writing the number in words

• Adding all the digits together