Ray is 29 years old. Laura is 12 years old. Ray is how many years older than Laura?
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George has 22 dollars more than Tracy. Tracy has 40 dollars. How many dollars does George have?
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Tracy invited 70 friends to her birthday party. Only 47 friends came to the party. How many friends didn't came to Tracy's party.
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Karen watered 46 of the 72 plants. How many plants still need to be watered?
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Ray has 95 crayons. 89 of them are in the green box and the others are in the red box. How many crayons are in the red box?
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