subtraction
ryan has five cookies, he gave three to amy, how many
cookies does he have left?
ans: five minus three equals two. 5 - 3 = 2
two cookies.
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, 8F
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06/12 07:51,
5年前
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06/16 03:15,
5年前
, 11F
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06/16 03:15,
5年前
, 12F
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