9.1×4.8×4.5÷1.6÷20分之3÷1.3的简便计算
1个回答
9.1×4.8×4.5÷1.6÷20分之3÷1.3
=1.3×7×1.6×3×4.5÷1.6÷3/20÷1.3
=1.3×7×3×4.5×20/3÷1.3
=7×4.5×20
=7×90
=630
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