The video tutorial explains how to measure liquid volume using the metric system, focusing on liters and milliliters. It demonstrates solving real-world problems involving liquid volume by using number lines. Examples include calculating the water needed to fill an aquarium, determining the remaining medicine in a bottle, and figuring out how many bottles of lemonade are required for a family reunion. The tutorial emphasizes the practical application of number lines in solving these problems.

What is the equivalent of 1 liter in milliliters?

• 500 milliliters

• 1000 milliliters

• 1500 milliliters

• 100 milliliters

How much more water does Miles need to add to his aquarium to fill it completely?

• 10 liters

• 40 liters

• 20 liters

• 30 liters

If Shawna has taken 6 doses of her allergy medicine, each 5 milliliters, how much medicine is left in the bottle?

• 20 milliliters

• 40 milliliters

• 50 milliliters

• 30 milliliters

How many more 2-liter bottles of lemonade does Evan need to buy to have a total of 24 liters?

• 5 bottles

• 6 bottles

• 8 bottles

• 7 bottles

What is the purpose of using a number line in these liquid volume problems?

• To compare different liquid volumes

• To visually represent and solve the problem

• To convert liters to milliliters

• To measure the exact volume of liquid