At a dry canyon campsite, Emek and Luna checked their water before continuing the hike. They needed 3 liters in all. One container held 1 liter, and another held 750 milliliters. Luna knew that 1 liter was 1000 milliliters, so together they had 1750 milliliters. They still needed 1250 milliliters. Emek filled a 1-liter bottle and a 250-milliliter cup. They checked the amounts and reached exactly 3 liters. With enough water packed, they continued safely along the trail.
Challenges
Challenge 1 of 5
Challenges
Challenge 1 of 4
Hint
First use the fact that 1 liter equals 1000 milliliters.
Luna says the 1-liter container and the 750-milliliter container hold 1750 milliliters altogether. Which calculation correctly checks her answer?
1000 + 750 = 1750 milliliters1000 - 750 = 250 milliliters100 + 750 = 850 milliliters1000 + 750 = 1850 millilitersCorrect! Converting 1 liter to 1000 milliliters gives 1000 + 750 = 1750 milliliters.
Convert the 1-liter amount to milliliters, then add the two amounts.
Next🎉 Congrats! You got this question!
Hint
Subtract the amount they already have from 3000 milliliters.
Emek and Luna need 3 liters of water, which is 3000 milliliters. They already have 1750 milliliters. How many milliliters more do they need?
Correct! They need 1250 more milliliters to reach 3000 milliliters.
Find the difference between 3000 milliliters and 1750 milliliters.
Next🎉 Congrats! You got this question!
Hint
Include both the 1-liter bottle and the 250-milliliter cup in the total.
A friend says that adding Emek's 1-liter bottle and 250-milliliter cup to the 1750 milliliters they already had would give only 2000 milliliters. Which calculation best shows why the friend is mistaken?
1750 + 250 = 2000 milliliters1000 + 250 = 1250 milliliters1750 + 1000 + 250 = 3000 milliliters3000 - 1750 = 1250 millilitersCorrect! The 1-liter bottle is 1000 milliliters, so all the water together is 3000 milliliters.
Make sure the calculation includes the 1750 milliliters they had, the 1000-milliliter bottle, and the 250-milliliter cup.
Next🎉🎉🎉🎉🎉🎉🎉🎉
🎉 Congrats! You finished this challenge set!
