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0.75*2.84/3.6/1.5/1.42*1.8急!
满意追加5分
人气:194 ℃ 时间:2020-03-28 15:26:57
解答
0.75*2.84/3.6/1.5/1.42*1.8
=(0.75÷1.5)x(2.84÷1.42)x(1.8÷3.6)
=0.5x2x0.5
=0.5
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计算:3.6×42.3×3.75-12.5×0.423×28=_.
23.42+46.84×0.5378×1/4+0.5378×46.84×0.75-8×46.84×0.125×0.5378=_.
简便算:0.25+5.2+9.75+84.8 (2)8/1.6+8.4*2.7 (3)16.2/1.5*0.24
(-5)-(+3)+(-9)-(-7) 【56+(-75)-(-7)】-(8+4+3) 42/(-1)-1/(-0.125) -(+2)-(-1)-(+3)
8.5+1.7*0.42.84*(8.5-1.2)12.5*32*0.25 简算
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