My brother lost 2 pebbles out of the 6 pebbles he collected from the river. How many pebbles are left with my brother?
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I filled a tank with 5 gallons of water. 4 gallons leaked from the tank. How many gallons of water is left in the tank?
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Tracy invited 5 friends to her birthday party. Only 3 friends came to the party. How many friends didn't came to Tracy's party.
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Tim is 6 years old. Gail is 3 years old. Tim is how many years older than Gail?
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Liz watered 2 of the 5 plants. How many plants still need to be watered?
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