Bill has a box of markers that has a base of 8 cm by 20 cm and a height of 6 cm. Martin's pencil box has a height of 4 cm and a base that is 15 cm by 16 cm. Bill says his marker box has the same volume as Martin's pencil box. Is Bill right? Explain

Ok so you need to multiply the length, width, and height together for each one.

Bill: 8 x 20 x 6 = 960

Martin: 4 x 15 x 16 = 960

So Bill is right, they both have the same volume.

Bill is correct because to find the volume of a rectangular prism you have to find the area of the base which is length times width and then you have to multiply it by the height. I did that with the two boxes of makers and the both equal 960 cm cubed, which means bill was right.