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8 March, 01:44

Ms. Jan brought in cookies of her class. She gave out half of them in the morning. At lunch, she gave out 12 more. She then had 10 cookies left. How many cookies did she bring

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  1. 8 March, 02:12
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    Jan brought 44 cookies

    Step-by-step explanation:

    To solve this problem, we need to work backwards. First, we have 10 cookies left at the end of the day. At lunch, she gave away 12 cookies. This means that Ms. Jan had 22 cookies at lunch since

    10 + 12 = 22

    In the morning, Ms. Jan gave out half of her cookies. This means that she started with twice as many cookies as she had at the beginning of lunch.

    22 x 2 = 44

    Ms. Jan brought 44 cookies.
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