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Pre-Algebra 17 Online
OpenStudy (anonymous):

10. Write a number sentence for the model. Let one white tile equal +1 and one black tile equal –1.

OpenStudy (anonymous):

OpenStudy (anonymous):

I really don't understand this @ganeshie8

OpenStudy (anonymous):

Any ideas? @-StudyShark-

OpenStudy (gorv):

the black box is black tile here and space between them is white tile

OpenStudy (gorv):

so put -1 for black and 1 for white

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