During a mountain hike, Emek, Luna, and Pixel found flag posts leading to a campsite. The first post had 4 flags, the second had 7, and the third had 10. Pixel noticed the number of flags increased by 3 each time. They predicted the next posts should have 13 and 16 flags, added the missing flags, and helped adventurers follow the correct path safely to the campsite.
Challenges
Challenge 1 of 5
Challenges
Challenge 1 of 4
Hint
Compare the number of flags from one post to the next.
The flag posts had 4, 7, and 10 flags. Pixel checked the pattern. Which statement is true?
The number of flags decreases by 3 each timeThe number of flags increases by 3 each timeThe number of flags increases by 2 each timeThe number of flags stays the sameCorrect! The flag numbers go up by 3 each time.
Look carefully at 4, 7, and 10. The same number is added each time.
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Hint
Add the number of flags needed for the two new posts.
The next two flag posts had 13 and 16 flags. How many flags did Emek and Luna add to make both posts complete?
Correct! The two posts together needed 13 + 16 = 29 flags.
Add the two predicted flag amounts together. They are 13 and 16.
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Hint
Use the pattern rule: add the same number of flags each time.
An adventurer says the next flag post after 16 flags should have 18 flags. Is the adventurer correct?
Yes, because 16 + 2 = 18Yes, because the pattern adds 3 flagsNo, because the next post should have 17 flagsNo, because the next post should have 19 flagsCorrect! The pattern adds 3 flags, so 16 + 3 = 19. The adventurer's guess is not correct.
Check the pattern again. Each new post has 3 more flags than the previous one.
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🎉 Congrats! You finished this challenge set!
