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数学
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-785×-1/4加25%×10又1/2加0.25×负4.5=?快
-785×-1/4加25%×10又1/2加0.25×负4.5=200
人气:129 ℃ 时间:2020-04-13 10:06:38
解答
=785*0.25+0.25*10.5+0.25*-4.5
=(785+10.5-4.5)*0.25
=790*0.25=197.5
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