Calculating Distance on a Number Line

The video tutorial explains how to calculate the distance between two points on a number line, emphasizing that distance is always positive. It covers counting steps between points, finding distance from zero, handling decimals, and using absolute value. The tutorial uses relatable examples, such as a trip with a layover, to illustrate concepts. It also includes a brief mention of a burrito place at Denver airport.

What is the first step in finding the distance between two points on a number line?

• Count the spaces

• Make the distance negative

• Draw the number line

• Label the points

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How many steps are there between -3 and 5 on a number line?

• 8

• 9

• 7

• 6

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What is the distance from 0 to -3.5 on a number line?

• 3.5

• -3.5

• 0

• 7

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CCSS.7.NS.A.1C

If you plot points at -2.7 and 4.4, what is the first step to find the distance between them?

• Subtract the numbers

• Split the trip at zero

• Add the numbers

• Count the spaces directly

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What is the distance from 0 to 4.4?

• 4.4

• -4.4

• 0

• 8.8

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What is the combined distance between -2.7 and 4.4?

• 6.1

• 7.1

• 8.1

• 9.1

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What is the distance between points A and B if the distance is 9?

• Zero

• Negative 9

• Positive 9

• One

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What does the absolute value of a number represent?

• The negative of the number

• The distance from zero

• The positive of the number

• The sum of the digits

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What is the absolute value of -5 + 4?

• -9

• 9

• -1

• 1

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What is the absolute value of -5 - 4?

• -9

• -1

• 1

• 9

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