A research drone became stranded in a dangerous asteroid field where glowing beacons formed a floating integer number line. Nova, Luna, and Emek had to rebuild the rescue route by placing location markers at the correct integers. The markers were labeled -8, 5, -3, 0, 2, and -1. They first identified which integers belonged to the left and right of zero, then arranged them in order along the number line. The completed route guided their spacecraft safely through the asteroids, allowing them to recover the drone and return to the space station.
Challenges
Challenge 1 of 5
Challenges
Challenge 1 of 4
Hint
Integers to the left of zero are negative.
Which group contains all the rescue-route markers that belong to the left of zero?
-8, -3, -1-8, -3, 0-1, 0, 20, 2, 5Correct! -8, -3, and -1 are all negative integers.
Check which markers have values less than zero.
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Hint
Find the distance from -8 to -1, then add the distance from -1 to 5.
After the markers are arranged in order, the spacecraft travels from -8 to -1 and then from -1 to 5. How many units does it travel altogether?
Correct! The spacecraft travels 13 units altogether.
Calculate both distances on the number line and add them.
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Hint
Numbers increase as you move from left to right.
Which list correctly places the rescue-route markers from left to right on the integer number line?
-8, -3, -1, 0, 2, 5-1, -3, -8, 0, 2, 5-8, -3, 0, -1, 2, 55, 2, 0, -1, -3, -8Correct! The integers are ordered from least to greatest.
Compare the negative integers carefully before placing zero and the positive integers.
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