Strong wind had scattered number markers beside the canyon trail. Emek and Luna needed to fix them before heading home. Three markers showed 34, 36, and 35. Luna placed 35 between 34 and 36. Nearby, Emek found 38 and put it after 37 but before 39. Pixel lit each marker as they checked: 34, 35, 36, 37, 38, 39. The order was correct, so they safely followed the trail home.
Challenges
Challenge 1 of 5
Challenges
Challenge 1 of 4
Hint
Start with 34 and count forward one number at a time.
Luna needs to check the markers 34, 36, and 35. Which order shows them correctly from smallest to largest?
35, 34, 3636, 35, 3434, 36, 3534, 35, 36Correct! 34, 35, 36 is the correct counting order.
Try again. Check which number comes after 34 and before 36.
Next🎉 Congrats! You got this question!
Hint
Count one number forward from 37.
Emek says a marker belongs after 37 and before 39. What number must be on that marker?
Correct! 38 comes after 37 and before 39.
Try again. Think about the number between 37 and 39.
Next🎉 Congrats! You got this question!
Hint
In correct counting order, each number is one more than the number before it.
Pixel checks the repaired trail. Which row has a mistake in the counting order?
34, 35, 36, 3735, 36, 38, 3936, 37, 38, 3934, 35, 36, 37, 38, 39Correct! That row skips 37 between 36 and 38.
Try again. Look for a row that skips a number.
Next🎉🎉🎉🎉🎉🎉🎉🎉
🎉 Congrats! You finished this challenge set!
