Volume of a Rectangular Prism | 5th Grade Math (Mastery Check)

welcome to fifth grade math with mr. J so here we are at the volume of rectangular prisms mastery check where you are gonna try 4 on your own here to see if you have volume down now if you're looking for an explanation instruction or more help I drop the link to my instructional video down in the description so go ahead and check that out and then come back to the mastery check if you're ready for the mastery check you should have something to write on and something to write with when I say pause here in a few seconds you'll pause the video complete these 4 problems press play when you're ready check your work with mine to see if you have it down so whenever you're ready go ahead and press pause alright welcome back I'm assuming you have those 4 problems done so let's go ahead and see how you did so number one remember we have two different formulas to find the volume of rectangular prisms I'm going to use volume equals length times width times height and then fill in my dimensions so we have a length of 2 times a width of 3 times a height of 2 now if you considered the length to be this 3 here at the bottom and then the 2 you considered the width that's fine if those numbers are mixed up or you considered you know like I said the 2 to be the width and the 3 to be the length or what have you that's fine you'll end up with the same answer and so for number one we should have 12 cubic feet 12 cubic feet circle our answer let's move on to number two here volume equals length times width times height plug in two times two times twelve and we end up with 48 cubic inches all right let's go over to the number three here volume equals length times width times height plug in fourteen times eight times three and that will give us a volume of 336 cubic meters and then number four here pay attention please because we did not have everything in the same unit so we have two feet down at the bottom there that needs to be converted to inches okay everything needs to be the same unit of measurement so that would be two feet is actually 24 inches so we did one like that on the instructional video so always check your dimensions and your units to make sure everything makes sense and everything is the same unit so volume equals length times width times height so the length five times the width of 24 inches times the height of eight and that will give us a volume of 960 cubic feet so there it is the mastery check for volume of rectangular prisms so hopefully you have that formula down and then you're able to complete the problem all the way through if you need a little bit more help head back to the instructional video and then give this mastery check another shot thanks for watching until next time peace