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Mathematics, 20.08.2019 14:20 emilyborland50

Benny bought 9 new baseball trading cards to add to his collection. the next day his dog ate half of his collection. there are now only 40 cards left. how many cards did benny start with?

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Benny bought 9 new baseball trading cards to add to his collection. the next day his dog ate half of...
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