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Mathematics 17 Online
OpenStudy (anonymous):

In a Diennes block, (10cm *10cm*10cm), how many centimeter cubes are not visible?

OpenStudy (anonymous):

(4*80) + (4*10) = 360 visible so 1000-360 =640 not visible.

OpenStudy (anonymous):

the answer is 416

OpenStudy (anonymous):

Duh, forgot the top and bottom:-)

OpenStudy (anonymous):

Sure it's not 512?

OpenStudy (anonymous):

thats what i got but in the answer sheet it was 416 :(

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