2﹣÷﹣ 8.1÷(5﹣0.005×700×1)
〔1.8﹣1.8×(1.8﹣1.8)〕÷0.36 〔5﹣1.7÷(2﹣1)〕×1
51÷+71÷+91÷
6÷〔35×(+)〕×4.8 1+3+5+7+9.
2﹣÷﹣ 8.1÷(5﹣0.005×700×1)
〔1.8﹣1.8×(1.8﹣1.8)〕÷0.36 〔5﹣1.7÷(2﹣1)〕×1
51÷+71÷+91÷
6÷〔35×(+)〕×4.8 1+3+5+7+9.
试题篮
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