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@mathphoto16: Nothing. Null. Empty. 0. The Week 5 #mathphoto16 challenge is here! What do you see that makes you think of #zero? https://t.co/cGmceAuNqx | by tads2

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@mathphoto16: Nothing. Null. Empty. 0. The Week 5 #mathphoto16 challenge is here! What do you see that makes you think of #zero? https://t.co/cGmceAuNqx

Nothing. Null. Empty. 0. The Week 5 #mathphoto16 challenge is here! What do you see that makes you think of #zero? t.co/cGmceAuNqx - @mathphoto16

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Uploaded on July 10, 2016