Monday, 9 September 2013

How many cubes on the pyramid

There was 496 cubes on my answer was 396 so need 100 more cubes.
Lots of people in my class got it wrong.
I counted 11 cubes then I contend all of the 11 rows. Then I contend the second row on the second layer there was 9 cube in a row.
Me and Henry worked together but we did not get the same answer.
Here's my photo.

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