Emek and Luna followed numbered stones through the forest to their campsite. The trail began 11, 12, 13, but the next stone was missing. Pixel lit up 13 and 15. "Fourteen belongs between them!" said Luna. Farther on, they saw 17, an empty space, and 19. Emek chose 18 for the gap. With the number trail complete, they followed the stones safely to camp.
Challenges
Challenge 1 of 5
Challenges
Challenge 1 of 4
Hint
Count forward one number from 13.
Pixel lit up 13 and 15 on the forest trail. Which number belongs between 13 and 15?
12141617Correct! 14 comes after 13 and before 15.
Try again. Count from 13 to the next number.
Next🎉 Congrats! You got this question!
Hint
Count forward one number from 17.
Farther along the trail, Emek and Luna saw 17, an empty space, and 19. What number belongs in the empty space?
Correct! 18 comes between 17 and 19.
Try again. Think about the number that comes right after 17.
Next🎉 Congrats! You got this question!
Hint
Start at 13 and count forward one number at a time.
After Emek and Luna filled the missing stones, which group shows four trail numbers in the correct counting order?
13, 15, 14, 1614, 13, 15, 1613, 14, 15, 1616, 15, 14, 13Correct! 13, 14, 15, 16 are in counting order.
Try again. Each number should be one more than the number before it.
Next🎉🎉🎉🎉🎉🎉🎉🎉
🎉 Congrats! You finished this challenge set!
