Ray has to clean 29 windows. He has cleaned 22 of them. How many are still left to be cleaned?
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Harry has 74 marbles. He gave 69 marbles to his dad. How many total marbles are left with Harry?
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Ray has 22 dollars more than Lorri. Lorri has 33 dollars. How many dollars does Ray have?
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Tracy has 67 teddy bears. She gave 35 of them to her best friend. How many teddy bears does she now have?
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Lorri invited 79 friends to her birthday party. Only 20 friends came to the party. How many friends didn't came to Lorri's party.
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