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①7.2×( - )
② ÷ ÷
③ ×52%+0.75×0.48
④ ×( + )
⑤15×
⑥ ×[ ÷( - )]
× = ÷ = 12.3÷1%= ÷5× ×5=
1÷0.3= ×3.6= 2 ×3= + × - =
进入组卷