Danny has to clean 7 windows. He has cleaned 6 of them. How many are still left to be cleaned?
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My brother lost 2 pebbles out of the 9 pebbles he collected from the river. How many pebbles are left with my brother?
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Liz is allowed to talk only for 9 minutes to her friend. She has already talked for 5. How many more minutes Liz can talk?
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Gail has to read 8 pages for her reading assignment. She read 4 pages. How many pages she has to still read?
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I filled a tank with 6 gallons of water. 4 gallons leaked from the tank. How many gallons of water is left in the tank?
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