Math word problems

Alan walked 10 minutes to the park. He walked 8 minutes to come home.
How many minutes did he walk in all?
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Eric has some fishes in the fish tank. He has 3 golden fishes, 2 blue fishes, and 4 black fishes.
How many fishes does Eric have in the tank?
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Andy has collected 8 play cards. Frank has collected 2 cards.
How many cards have Andy and Frank collected in all?
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