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题型:填空题 题类:常考题 难易度:普通
有理数的加减混合运算++++++++++++++++++++2
①-2-11= ②5-(-12)=
③(-5)×(-6)= ④
⑤ = ⑥ =
⑦-3.5+3.5= ⑧ =
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