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① 426×52=
②506×24=
③ 240×38=
④784÷26=
⑤117÷13=
⑥597÷28=
验算:
①206×25=
②#243×35=
③125×45=
④#840÷31=
①103×49=
②967÷57=
③305×90=
④780÷26=
进入组卷