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Mathematics, 25.07.2019 07:00 kingkushkaz2093

Mary baked 21 cookies on saturday and twice that many on sunday for a school fundraiser. 4 cookies fell on the ground and had to be thrown out. if she packaged 3 cookies to a bag, how many cookies were left over? i don't know what to do?

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Mary baked 21 cookies on saturday and twice that many on sunday for a school fundraiser. 4 cookies f...
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