Emek and Luna climbed a mountain trail toward their campsite. Along the path, they found signs decorated with 3, 6, 9, and 12 stars. Luna noticed that each new sign had 3 more stars than the one before it. At a fork, one path had a sign with 14 stars and the other had 15 stars. Emek predicted the next number in the pattern. They followed the 15-star sign and soon reached their campsite.
Challenges
Challenge 1 of 5
Challenges
Challenge 1 of 4
Hint
Compare the number of stars on one sign with the number on the next sign.
The trail signs had 3, 6, 9, and 12 stars. Which rule describes this pattern?
Add 2 stars each timeAdd 4 stars each timeAdd 3 stars each timeAdd 1 star each timeCorrect! Each sign has 3 more stars than the sign before it.
Try again. Count from 3 to 6 and from 6 to 9.
Next🎉 Congrats! You got this question!
Hint
Use the same rule that changes 12 stars to 15 stars.
Emek and Luna followed the 15-star sign. If the pattern continues, how many stars should be on the next sign?
Correct! The next sign should have 18 stars.
Try again. Add 3 more stars to 15.
Next🎉 Congrats! You got this question!
Hint
Continue the pattern after 15 by adding 3 each time.
Farther along the trail, Luna sees signs with 18, 20, 21, and 24 stars. Which sign does NOT fit the add-3 pattern?
18 stars20 stars21 stars24 starsCorrect! The pattern goes 15, 18, 21, 24, so 20 does not fit.
Try again. Start at 15 and keep adding 3.
Next🎉🎉🎉🎉🎉🎉🎉🎉
🎉 Congrats! You finished this challenge set!
