A fish tank has 8 fishes. 5 of them have red fins and others have blue fins. How many fishes have blue fins?
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Thomas has 8 marbles. He gave 3 marbles to his dad. How many total marbles are left with Thomas?
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James has to clean 8 windows. He has cleaned 1 of them. How many are still left to be cleaned?
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I filled a tank with 5 gallons of water. 1 gallons leaked from the tank. How many gallons of water is left in the tank?
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My brother lost 2 pebbles out of the 5 pebbles he collected from the river. How many pebbles are left with my brother?
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