At an old observatory, Emek and Luna found a giant number line on the floor with several star observation cards waiting to be placed. The cards showed 248, 252, 250, 245, and 255. Before the telescope would unlock, every card had to be in the correct position. Emek and Luna compared nearby numbers, then asked Dr. Dino to check their work. After fixing one misplaced card, they completed the number line correctly. The telescope unlocked, and they enjoyed a beautiful night of stargazing together.
Challenges
Challenge 1 of 5
Challenges
Challenge 1 of 4
Hint
Think about which number is greater than 248 but less than 252.
Which card should be placed between 248 and 252 on the number line?
245250255252Correct! 250 belongs between 248 and 252.
Not quite. Find the number that fits between 248 and 252 on the number line.
Next🎉 Congrats! You got this question!
Hint
Compare all five numbers and find the greatest one.
After arranging the cards from least to greatest, what is the largest number?
Correct! 255 is the largest number.
Check all five numbers and choose the greatest.
Next🎉 Congrats! You got this question!
Hint
Check whether each number is greater than the one before it.
Dr. Dino notices the cards are arranged as 245, 248, 252, 250, 255. Which statement is correct?
The cards are in the correct order.Only 245 is in the wrong place.250 and 252 need to switch places.255 should come before 248.Correct! 250 should come before 252 in increasing order.
Not quite. Compare 250 and 252 carefully to see which comes first.
Next🎉🎉🎉🎉🎉🎉🎉🎉
🎉 Congrats! You finished this challenge set!
