Ray has 67 marbles. He gave 42 marbles to his dad. How many total marbles are left with Ray?
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A fish tank has 59 fishes. 31 of them have red fins and others have blue fins. How many fishes have blue fins?
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Thomas has 38 quarters less than Tracy. Tracy has 57 quarters. How many quarters does Thomas have?
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Joanna has to read 48 pages for her reading assignment. She read 39 pages. How many pages she has to still read?
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Tim has to clean 13 windows. He has cleaned 9 of them. How many are still left to be cleaned?
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