MATHEMATICAL KANGAROO 2015 | Multiplying whole numbers

Channel:
Subscribers:
8,450
Published on ● Video Link: https://www.youtube.com/watch?v=qC2qp49yvhs



Duration: 0:00
3 views
0


Every one of these six building blocks consists of 5 little cubes. The little cubes are either white or grey. Cubes of equal color don’t touch each other. How many little white cubes are there in total?
10
11
12
18
30