Decimals on Display: How to Compare with Number Lines

Comparing Decimals Using Number Lines

Example 1:

Decimals to Compare: \(0.4\) and \(0.35\)

Using a Number Line:

Draw a number line from \(0\) to \(1\). Mark the positions of \(0.4\) and \(0.35\) on the line.

By observing their positions, we can see that \(0.4\) is to the right of \(0.35\), indicating that \(0.4\) is greater.

Detailed Answer:

\(0.4 > 0.35\)

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Example 2:

Decimals to Compare: \(0.65\) and \(0.7\)

Using a Number Line:

Draw a number line from \(0\) to \(1\). Mark the positions of \(0.65\) and \(0.7\) on the line.

By observing their positions, \(0.7\) is to the right of \(0.65\), indicating that \(0.7\) is greater.

Detailed Answer:

\(0.7 > 0.65\)

Number lines provide a clear visual representation of decimals, making it easier to compare them. This method is especially beneficial for those who prefer visual learning. By practicing with number lines, you’ll gain a deeper understanding of the relative values of decimals and enhance your comparison skills!

Practice Questions:

1. Place \(0.5\) and \(0.55\) on a number line. Which is greater?

2. Compare \(0.72\) and \(0.8\) using a number line. Which is smaller?

3. Determine the larger decimal between \(0.3\) and \(0.29\) using a number line.

4. Which is smaller when placed on a number line: \(0.9\) or \(0.91\)?

5. Compare \(0.123\) and \(0.13\) on a number line. Which is greater?

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Answers:

1. \(0.55\)

2. \(0.72\)

3. \(0.3\)

4. \(0.9\)

5. \(0.13\)

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