There are some students in the class. The class gets 3 new students. Now there are 12 students in the class. How many students were there to begin with?
12 - 3 = 9
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15
Ann has 4 cookies. She has 3 fewer cookies than Ben. How many cookies does Ben have?
4 + 3 = 7
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15
Find the rest of the fact family for this equation: 11 - 4 = 7
11 - 7 =4, 4 + 7 = 11, and 7 + 4 = 11
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15
Linda has 6 shirts. Her friend Sam gives her 7 more shirts. How many shirts does Linda have now?
6 + 7 = 13
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15
Jen has 9 marbles. She gives 3 of them to a friend. How many marbles does Jan have left?
9 - 3 = 6
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15
Steve has 8 stickers. His mom gives him 5 more stickers. How many stickers does Steve have now?
8 + 5 = 13
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15
Find the rest of the fact family for this equation: 7 + 5 = 12