Emek and Luna wanted to help keep the beach clean before other families arrived. They picked up shells, smooth stones, and pieces of sea glass along the shore. After sorting everything, they counted 5 shells, 7 smooth stones, and 5 pieces of sea glass. Seeing that the shells and sea glass groups matched helped them organize the baskets more easily. With every item sorted into the right basket, the beach looked cleaner, and they happily continued their walk.
Challenges
Challenge 1 of 5
Challenges
Challenge 1 of 4
Hint
Look for the two groups that both have 5 items.
Which two groups had the same number of items?
Shells and smooth stonesSmooth stones and sea glassShells and sea glassAll three groupsCorrect! The shells and sea glass groups each had 5 items.
Not quite. Compare the number in each group and find the matching pair.
Next🎉 Congrats! You got this question!
Hint
Compare 7 smooth stones with 5 shells.
How many more smooth stones than shells did Emek and Luna collect?
Correct! They collected 2 more smooth stones than shells.
Try subtracting the 5 shells from the 7 smooth stones.
Next🎉 Congrats! You got this question!
Hint
Start with 5 pieces of sea glass and add 2.
Emek adds 2 more pieces of sea glass to the sea glass basket. Which statement will then be true?
The sea glass group will have fewer items than the shell group.The sea glass group will match the smooth stone group.The shell group will match the smooth stone group.All three groups will have the same number of items.Correct! The sea glass group will have 7 items, matching the 7 smooth stones.
Not quite. Find how many pieces of sea glass there will be after adding 2, then compare the groups.
Next🎉🎉🎉🎉🎉🎉🎉🎉
🎉 Congrats! You finished this challenge set!
