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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