Place value for decimals greater than one (examples) | 4th grade | Khan Academy | Summary and Q&A

TL;DR

The video explains how to interpret decimal values and perform operations involving tenths and hundredths.

Key Insights

• ➗ Shaded areas in diagrams can represent both tenths and wholes, depending on the divisions.
• 🫥 Understanding the number line and its divisions into tenths helps determine decimal values accurately.
• ❓ The relationship between tenths and wholes is crucial in converting fractions and identifying decimal representations.

Transcript

We're told that "Each square below represents one whole." So this big square right over here is a whole, and then this big square over here is another whole. Then they ask us "Which of the following does the shaded area represent? Select all that apply." So let's see-- the shaded area. We're shaded in blue. So let's see-- one way to think about it ... Read More

Questions & Answers

Q: How can you determine the shaded area in a diagram divided into tenths?

The shaded area represents 1 and 1 tenth. This can also be viewed as 11 tenths since all tenths are shaded.

Q: How do you locate a point on a number line divided into tenths and convert it into decimal form?

Counting the tenths along the number line helps determine the decimal value. For example, 1 and 8 tenths would be written as 1.8.

Q: How do you write a decimal equivalent to a given number of tenths?

To convert tenths to a decimal, divide the number of tenths by 10. For example, 24 tenths would be written as 2.4.

Q: What is the decimal representation of 102 hundredths?

102 hundredths is equal to 1.02, as 100 hundredths is equivalent to 1 and 2 hundredths is written as 0.02.

Summary & Key Takeaways

• The video demonstrates how to determine the shaded area in a diagram divided into tenths and identify its representation in numerical form.

• It explains how to locate a point on a number line divided into tenths and convert it into decimal form.

• The video also provides examples of writing decimals in different forms and converting tenths and hundredths into decimal values.