①0.25×125×8×4
②4.7×2.7+5.53×27
③1.5×[1÷(2.1-2.05)]
④9.16×9+9.16
⑤28.59-4.64×0.2÷0.1
⑥(7.9-3.06÷0.68)×1.5
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