Find the change in depth between two positions
Find how far apart the two values are on a number line.
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A diver is at −2 m (below sea level means negative). She swims to −5 m. How many metres did she move up or down? Write the size of the change.
Answer: 3
A diver is at −13 m (below sea level means negative). She swims to 18 m. How many metres did she move up or down? Write the size of the change.
Answer: 31
A diver is at −1 m (below sea level means negative). She swims to 8 m. How many metres did she move up or down? Write the size of the change.
Answer: 9
Tip: Find how far apart the two values are on a number line.
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