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计算:2×(18.5-3.15)+6.6÷(0.75-0.2)=
人气:456 ℃ 时间:2020-05-11 03:49:57
解答
2×(18.5-3.15)+6.6÷(0.75-0.2)
=2×15.35+6.6÷0.55
=30.7+12
=42.7
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