Word Problems - joining, result unknown

Sarah has 23 apples. Her friend gives her 15 more apples. How many apples does Sarah have now?

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Tom has 47 marbles. He finds 26 more marbles in his drawer. How many marbles does Tom have in total?

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Lisa has 34 stickers. She buys 29 more stickers from the store. How many stickers does Lisa have now?

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There are 56 birds in a tree. 18 more birds join them. How many birds are there in total?

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A farmer has 42 cows. He buys 17 more cows. How many cows does the farmer have now?

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Emma has 28 candies. Her brother gives her 34 more candies. How many candies does Emma have now?

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There are 39 books on a shelf. 22 more books are added. How many books are there now?

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A baker has 25 loaves of bread. He bakes 36 more loaves. How many loaves of bread does he have now?

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There are 48 students in a class. 19 more students join the class. How many students are there now?

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A gardener plants 33 flowers. He plants 27 more flowers. How many flowers are there in total?

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