How many 1-meter cube are needed to fill a box measuring 13meter by 9meter by3m completely?

Answer 1

351 cubes.

13 x 9 = 117

117 x 3 = 351

Imagine you have a row of 13 cubes.

Now imagine you have 9 of these rows laying beside each other.

That's 117 cubes(13 x 9 = 117).

Now imagine that there are two more 13x9 cubes lying on top of the first one(to make three total).

117 x 3 = 351

That's 351 cubes to fill a box measuring 13x9x3.