My brother lost 2 pebbles out of the 46 pebbles he collected from the river. How many pebbles are left with my brother?
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Ray has 87 marbles. He gave 12 marbles to his dad. How many total marbles are left with Ray?
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A fish tank has 77 fishes. 68 of them have red fins and others have blue fins. How many fishes have blue fins?
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Harry is 94 years old. Liz is 57 years old. Harry is how many years older than Liz?
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73 birds are sitting on a tree. 53 of them flew away. How many birds will be left on the tree?
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