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During the Christmas holidays, the airport opens 12 hours during each day. If 336 planes take off each day, how many planes take off from this airport each hour?

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There are 34 peanuts in each box. There are 7 boxes. How many peanuts are there?

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Denise has 54 apples. Shaun gives her 13 more apples. How many apples does Denise have now?

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There are 2,164 pieces of candy in Betty's collection. She splits the candies into 30 groups. How big is each group?

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Megan has 3 pounds of fudge. Her brother eats 1/4 of the fudge. How much fudge did her brother eat?

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Kai and his friends are going fishing. They will get 3 ounces of worms and 5 ounces of chum. How many ounces of bait will they buy?

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An eraser costs $0.12. How much would it cost to buy 30 erasers?

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Charles has 180 eggs to share with his 9 friends. How many eggs will each friend get?

What operation should be used to solve:

Aaron removes 38 jelly beans from a jar. The jar started with 100 jelly beans. How many jelly beans are left?