George has 9 crayons. 6 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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Thomas has 6 marbles. He gave 4 marbles to his dad. How many total marbles are left with Thomas?
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I filled a tank with 6 gallons of water. 2 gallons leaked from the tank. How many gallons of water is left in the tank?
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Tim picked 7 strawberries from the farm and ate 6 of them. How many strawberries does Tim now have?
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Sanjay has 7 darts. His brother took 3 darts from him. How many darts are left with Sanjay?
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