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Half your baseball card collection got wet and was ruined. You bought 13 cards to replace some that were lost. How many did you begin with if you now have 23?
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Half your baseball card collection got wet and was ruined. You bought 13 cards to replace some that were lost. How many did you begin with if you now have 23?

User Kissy
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1 Answer

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10 because if you subtract 13 and 23 you get 10 then if you add 13 and 10 you get 23

User Vineel
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