For lots more definitions explanations etc use search above. No the math term ratio doesnt mean multiply. The mean will increase.
The median will increase.
It probably goes without saying that kids need ample practice if they are to build any skill whether its reading or math. When one number is raised over another number we mean that the number is multiplied by itself those many number of times. To raise m to the power of 3 means m 3 and is equivalent to m 3 m m m. The median will increase.