standard_description: Apply and extend previous understandings of addition and subtraction to add and subtract rational numbers; represent addition and subtraction on a horizontal or vertical number line diagram.
problem_activity: Task
Amy has a fish tank shaped like a rectangular prism that is 20 cm by 20 cm by 16 cm.  What is the volume of the tank?
[IMG]
If Amy only fills the tank $\frac34$ of the way, what will be the volume of the water in the tank?


aligns: no